I'm a freshman in high school playing 3 singles for the team, playing with a Speed MP with either Dunlop or Prince Duraflex Syngut at around 52-53lb tension.
Recently, I've been breaking strings a lot more often - probably because we started practicing 2 hours a day 6 days a week - just broke my strings 2 weeks after getting them.
My strings also slide around a bunch like 3-4 hitting sessions after a fresh string job.
I play with heavy topspin, 80-90mph 1st serves, OHBH.
I'm looking for suggestions for new strings (I'm open to anything but natural gut - too expensive for me (you could maybe argue that in the long run, it's less expensive but idk)) or suggestions for new tensions.
Thanks!
I've been coaching high school teams for a lot of years and also stringing for some of the kids I coach along the way. Syn. gut seems to be great for a lot of the troops, but you sound like you're right on that cusp where it's time to consider a poly. That stuff is generally more tough than syn. gut and it will probably give you the performance you want if you're ripping on the ball with bigger pace and spin.
Just keep in mind that poly isn't a miracle string with nothing but upside. I've been coaching long enough to see several sluggers just like yourself using poly setups who have run into serious issues like tennis/golfer's elbow, wrist tendonitis, etc. where their injuries were bad enough to put those players out of action for a while. Poly won't break as fast as perhaps a syn. gut of about the same gauge, but it is notorious for "going dead" before it physically snaps. That's where it can be especially rough on a player's arm.
That could mean that you may need to re-string a poly at about the same rate as you would if you stick with syn. gut that pops about every two weeks. Not trying to be all gloom-and-doom, but that's a possibility that's worth knowing. Should you try something like a poly hybrid? Probably yes. If you want to exhaust your options with syn. gut, I'd say try a higher tension - maybe 55-56 lbs. - to see if you get a more consistent response. One syn. gut that performs rather well and is also tougher than most (in my opinion) is Gosen OG Sheep Micro.
Everybody has their own favorites in the poly world - there's probably more than just one right answer in terms of what will click for you. That being said, I've kept reels of Isospeed Baseline on hand for several years and it's made many players very happy. It's a basic smooth poly that's apparently a bit softer than average. In recent years, locals have preferred this poly over some popular options including RPM Blast, Hyper-G, and Volkl Cyclone. More good news - TW sells if for $40 for a full reel.
I'd try Baseline 1.25mm in a hybrid with Gosen OGSM 16 crosses all tensioned no higher than where you've got your syn. gut right now. Even if that's too tight or too loose for you, it should give you a reference tension to work from. The reason that I'm a fan of hybrids is that they don't seem to turn dead as drastically as a full bed of poly might. The syn. gut crosses will retain some resilience until they break and the Gosen seems to also resist "locking up" better than other syn. guts.
If you get into some poly setups and your arm starts to get progressively more grumpy with wrist or forearm pain, get rid of the poly right away and re-string with either a moderately soft syn. gut or even a multifiber until everything is okay. Some multis are really expensive for what they do, but I've found great results with Prince Premier Control - they offer sets of this in durable 15L gauge, which I've used to help one or two heavy hitters who needed to cool out some significant golfer's elbow. Knowledge is power I guess.
And in case you don't have a backup racquet, I'd say it's time to get at least one now that you're a string breaker. Hope you have a decent season!!