Iso-Speed Tension Loss Question

lstewart

Semi-Pro
Guys, anyone had much experience with the Iso-Speed strings and offsetting tension loss with tighter initial string jobs? I've been using Head Rip Control in the crosses with Volkl V-Pro poly in the crosses of a Becker London frame. Hit well with this hybrid set-up, but chronically bad wrist kicked in. Read about Iso-Speed making the Head sting and using the poly fiber material, so bought a few sets. Info said to string 10% tighter. Love the string as a cross with the Volkl poly when new, but after a week there is too much tension loss and ball starts sailing. Much softer feel on the arm, so I'm trying to experiment. First effort was 64 and got too loose quicky. 67 felt great for about a week, then too lose. Last attempt was at 69 in the crosses!!! Felt firm but good on the first hit. My question is if the string loosens and then maintains, or just keeps losing tension quickly. Love it as a cross at the right tension, but don't want to have to replace it every week. Seems strange stringing a 98 frame at 69lbs, but I'm okay with it if the string will settle in at a solid tension for a while. Anyone have much experience with this?
 

lstewart

Semi-Pro
Well, shoot, that stinks. What I was afraid of. Guess I strung it tight enough that it took a while to loosen through the range of still having control. It probably felt great for 3 or 4 days, a little loose for a couple of outings, then too loose after that. I really like the feel for those few days it still played tight, but don't want to have to replace it every week. Was really jumping on those groundstrokes while it felt good.
 

lstewart

Semi-Pro
I've continued to try the Iso-speed in my crosses at higher tensions. I think I may have found the range to hold enough tension to play with control for more than a few days. I've got a frame with Iso-speed at a strung tension of 69lbs in the crosses that still feels good after a couple of weeks. I assume it has settled in around 60 or so. Had already strung another at 72lbs in the crosses, which is playable, but a little tight. Weird this string losses so much tension, but I like it as a firm cross string with the Volkl poly main. Elbow feels a little stress at this tension range, but not too bad. Can really swing out and blast groundstrokes with this set-up as long as the Iso-speed stays tight enough to not start spraying balls.
 
I have had good experience with Isospeed energetic 17g tension maintenance was good for about 8 -9 hrs the last hour before the string broke was very trampoline like. But the first 5 was definitely a great experience.

*Can't remember exactly could have been 7-8 as well
 
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lstewart

Semi-Pro
I've tried the basic models constructed with the polyolefin material, which I assume is what allows for the extra tension loss over what most strings would experience. I have used half sets as the cross string of Control, Control Classic, and Professional Classic. At this point I've got a frame with one of those strings in the crosses originally strung at 69lbs. This seemed have been tight enough to allow for the 10% or so tension loss they advertise, and to still play okay. For me it seems the secret to use one of these strings as a cross string and to get more than a few days from it, is to string it very tight. My guess it is losing more like 15% after a week.
 

jack crack

New User
I used isospeed control in the crosses and pyramid in the mains. I liked it quite a bit and have been meaning to give it another try. I can't really say how long it lasted, but I played it for month or two playing from 2 to 6 hours a week. When I got rid of them it was more because I wanted to try Tour Bite.

As seem to remember really liking it for serves and ground strokes. You can really use that spin to keep the ball in. It was also pretty comfortable.

I am just an older 3.0 player, and though I try to hit pretty hard, I don't come close to putting the kinds of wear and stress of strings many of the other posters here might.

So with that as a reference point I have to say, I intend to try them again.
 

tom4ny

Professional
I love Iso control and am trying out the new axon multi and mono. There is initial tension loss but then Iso Control (16g) settles in and I get a good 10 hours from it until I change it so in total I get about 12-15 hours from a full string job. I love isospeed :)
 

lstewart

Semi-Pro
I was using Head Rip Control in the crosses with Volkl V-Pro poly in the mains. Played pretty well with this, but old elbow and wrist problems were flairing up. Read about Iso-speed making Head strings and using the same material, so decided to try it. It suits my game when strung tight and using the poly in the mains. Seems pretty "arm friendly", but not overly powerful and allows me to swing hard. I've got sort of the old school classic 1970's game, just hitting a little topspin and lots of slice backhands. Still hit the forehand and serve hard and controling those strokes are the key to what i can use. Am now a 4.5 player and was ranked in the top 25 in the country in 50's witin the past couple of years. Weather turning cold here, so pulled out a frame with the Iso-speed cross originally strung at 66 several weelks ago, and which had gotten too loose before. With the colder weather the looser tension felt pretty good. I've got 3 frames strung, so don't know the hours on any one, but don't want to have to restring every week. Seems like stringing the Iso-speed in the upper 60's allows me to play it for it's normal life and not just a few days.
 

tom4ny

Professional
I primarily use Iso Control 16 as I love the feel and it holds tension a little better and lasts longer that Iso Professional (17). The old Iso Professional is a bit crisper and not as soft as the newer version but it holds tension better. It is more yellow in color where the new version is off white.

I like the new Axon strings. The mono has more pop than the multi but they are both very comfortable, though not as soft as my Iso Control. They are more crisp. The multi is a graphite color and the mono is white. Since they are brand new strings I still do not know it they will hold tension better than Iso Control. If you string Iso Control in the mid to upper 60's it will drop into the 50's and you should get at least another 8 hours but I think you can push it's life even a little more.
 

lstewart

Semi-Pro
I agree about the tension. I've found a tension close to 70 allows the string to settle in at a tension that is probably high 50's after a week or two. Tried 64 and 66, but only felt playable for a few days before too much tension loss. I've tried to 16g in several of the models, control, control classic, and professional classic. I think I'm going to continue to try these strings as crosses with poly mains for the near future, stringing the crosses around 70lb. Need to let the frame sit a few days at that tension, as your arm might explode if you play it straight off the string machine that tight!
 

tom4ny

Professional
I have played a few hours with both the Axon multi and Axon mono. I like the Axon Mono better as it has good pop and control, and better feel. My only issue is that it broke after 3 hours. I may try another set but I still like Isospeed Control 16 the best for playability and durability. Just string it 10 lbs higher intially as is suggested and it should last 15 hours. I have been playing with this string for a year and it has worked pretty consistently for me. Good luck to you guys and welcome to the Isospeed club!
 

dParis

Hall of Fame
I'm getting Pro Classic strung and my stringer says he typically pre-stretches most all jobs. Does pre-stretching affect the tension Pro or Classic should be strung at? I typically string in the mid 50's.
 
I'm getting Pro Classic strung and my stringer says he typically pre-stretches most all jobs. Does pre-stretching affect the tension Pro or Classic should be strung at? I typically string in the mid 50's.
Isospeed notes on their site that the professional and control both classic and new are pre-stretched already. The energetic lines just the core is pre-stretched.

My guess is that the reason the classic line comes on the reels is part of the pre-stretching process since that line loses the most tension as it is recommended to string it 10% higher.
 

AJMORGAN

New User
I wonder if the quick tension loss is related to when Jurgen Melzer used isospeed professional. He had it strung at a ridiculously high 75lbs, now maybe that's his usual tension or it could be related to the sudden tension loss ipassociated with the string. But, being a top pro the tension loss didn't bother him.

I just received about 20 packs of various isospeed string directly from them so looking forward to testing them out.
 
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