Will Shelley has 4 Yonex AI 98s. He now breaks strings about every 12-15 hours in in new setup of Hyoer G 1.30 / Head Hawk 1.25mm. He is a former 5.0 and according to another 5.0 player I spoke to on the court tonight, he should probably be a 5.0 now. I strung up two of Will's Ai 98 frames earlier today by the way.
You can google his name, record, and his UTR. But I will save you a little trouble.
The other four 4.5 players have three frames each except Warenski, who has two 2009 Model PD+
Carmola 3 Prince Textreme Warrior 100 (restrings after he breaks stings and he breaks strings about once per month now with Cyclone Tour).
Cohen 3 13 oz Pure Control Tours ( strings around 4 months - plays 3 days a week minimum )
Loesch 3 Aero Pro Drives ( plays about 2 hours a week max. I stung two of his frames in July 17 and again in May 2018). Yes you read that correct. Kept the same strings in for 10 months. Plays once a week. I don't recommend this to anyone.
Warenski and Loesch never break strings. They are good players who simply play about once a week. Estes is a 4.0 and he breaks strings in three frames a month like clockwork as he plays 3-4 days week.
Been driving WTA players (yes those women who try to earn a living playing tennis) as a volunteer for years. I can guarantee you many WTA women don't restring their frames every 3 hours or even 3 days. Some WTA players string their own frames. Most try to save money. Some don't even have a coach. Many play doubles to earn an extra paycheck.
Funny how so many people think many 4.5, 5.0, 5.5, and every pro player restrings a frame with. poly, every 3 hours, or 4-6 hours or every 10 -12 hours. Many don't. Ask a qualifier WTA how often she restrings..
Just because Federer , Serena and many wealthy pros restring their frames every 7 games, many pros aren't wealthy. They want to eat. They aren't all from silver spoon households. Many people posting on these forums make a lot more coin than the many of the pros outside the top 100 make.