Seem most like stock granny sticks till they get TE
Not sure about your club, but the myth here is that lighter sticks prevent tennis elbow, so a lot of people switch to something ~265g and get worse TE.
I used to string for a few low level players and I refused to give them anything thicker than 1.25mm. At least that will break maybe 1x/year.
I wish you strung at my club. Our club's VP recommends RPM Blast 1.35mm to everyone. Even beginners. They listen to him because he teaches the beginners and gives gear advice.
Everyone seems to love those strings because they never seem to break.
Remember, people often combine that with their TE inducing ~265g frames...
Recently there's been a massive uptick in Vcore Pro players because they try my setup with multis. They love it because it's not RPM Blast from a decade ago and they buy a VCP and string it with... RPM Blast 1.35mm... (the string I apparently use, according to our club's VP).
This forum is where I encounter the most people that alter theis frames.
I play mine stock.
I think this is a bannable offense.