Just thinking about it, apart from natural gut, most players (there are many exceptions) in the top 100 are using a string supplied by their racquet sponsor or an affiliate (i.e. Wilson players using Luxilon). I may be totally off but most Yonex sponsored players use YPTP. Most Head players use gut or Head Hawk, I can think of Berrettini as an exception. Some Babolat players use RPM/Rough. Almost all WIlson players using Lux string. Surely this can't be a thing of cost for top 100...
How much of a pro's string choice is determined by sponsor?
How much of a pro's string choice is determined by sponsor?