Discussion in 'Racquets' started by xFullCourtTenniSx, Jan 29, 2010.
When you have anything ideal Irvin, you don't touch it. Of course.
I think it has something to do with preserving of present rotational movement while accelerating, and energy spent on it. Like higher MgR/I racquets can carry the speed better, so you need less energy to maintain the already present RHS while accelerating it further. Like racquet wants to conform to its natural swing period, so if it is shorter, the better for reaching higher RHS.
But. While you come from physics point of view and try to project it to the playing experience, I come from my experience point of view, and trying to find an explanation for it through physics.
And experience tells me I get a higher RHS and have an easier time to swing when swinging the racquet with MgR/I around 21 than when swinging a racquet with MgR/I significantly lower than MgR/I. Am I confident in these personal observations? Absolutely.
Whether I can explain it or not, it's really less important. The important for me is if I can apply it when customizing, and what effect it has on my tennis. And if I wasn't very satisfied with this, well, I wouldn't be writing this post right now
@zalive MgR/I seems to work for me too, but adding mass at 7" won't always get you to the right value.
Thanks for lecturing me on the subject of MGR/I. I had no idea what it really was and I didn't care that much. So thank you.
I never really considered finding out my MGR/I because I use full Western grip and I've heard(I could(probably will) be wrong) that MGR/I helps less and less the more down your hand goes. Like MGR/I has more of an effect if you have an Eastern grip compared to a Full-western. Am I wrong? If so I really want to get into this topic, I'm a lunatic when it comes to splitting hairs, especially on gear.
Crie this is what I posted few posts ago
"I think it depends on your body type (height, arm length etc... taller guy might benefit from it more) and how you hold the racket, modern grip players will not receive as much benefit out of mass at 7" as conventional stroke players.
It is good to have this as an other tool in your belt, try it and see if it works for your body type and your strokes if it does not work you can simply remove it, same as lower or higher tension on poly strings, just try and see if it works for your game if not go back to your "normal" tension."
I don't have a lot of data points on western grips.
But one of my regular hitting partners is a 5.0 former D1 player with a full western forehand. I customized and tuned his racquets for him a couple of years ago - we ended up with final specs of 361 SW and MgR/I of 21.08 (Weight of 13.4 oz.) on his O3 Reds, and his heavy-spin forehand improved significantly and turned into a weapon after moving up in weight from his previous specs, which were at about 345 swingweight. The 21.08 number definitely worked better than 21.0 for him, as he complained that he couldn't accelerate the racquethead around fast enough (when I initially tried 21.0), but he loved it at 21.08. The high MgR/I may work better for his western forehand because the surplus angular acceleration can be used for extra low-to-high action for more topspin without compromising timing at impact as much as it would with a less extreme grip style.
Or he might have spent a bit more time in the gym building up his legs and core strength. Or his body developed a bit more in the time he took to adjust to the new heavier racquet spec. Either way, his stroke improved so it is a win.
If I received a dollar for everytime I saw a player signficantly improve his game simply by using a heavier racquet (heavier in the "right" places), I would be several dollars wealthier than I am now.
Alright, I will definetly be looking more into MGR/I. Could you recommend me a tread on it?
I believe that is rubbish. I can't tell you how many threads I've see where someone adds mass to the head and wants to know how much mass to put in the handle to counterbalance it. Or the other way around. If you take the constant (g) out of the equation and break it down what you have the the total mass (M) times the ratio of the radius (R) / inertia (I.) Mass does not have anything to do with how fast a pendulum swings but how it is distributed has everything to do with the balance (R) and Inertia (I.) And the radius and inertia directly control the pendulum's period.
There are a lot of people that don't believe it works but when I change the mass on one end using MgR/I gives me a real good idea of how to adjust the weight on the other end.
This is a good place to start:
Thank you for replying for so many of my questions.
Thank you for the guidance and replies.
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