It's my observation that most of the top players (not Stochelo) use medium Argentines "011s" or equivalent, rather than the light-gauge "010s." (I'm assuming long-scale guitars.) Does this seem to be correct?
If so, why? Do mediums enable better right-hand control, due to their stiffness -- less side-to-side string motion, better rebound, or "bounce"? Or do they enable lower action (a left-hand benefit but presumably lessened by the increased stiffness)?
I find mediums easier to control with the right hand. Nothing is more difficult for the right hand than playing with noodles! To assure some rebound with light gauge, the action has to be higher, and the break angle is important.
But mediums are more difficult on the left hand, unless the action is a bit lower or you don't want to be a very "technical" player. It also seems to me that the "window "of a good setup with mediums is a bit more critical.
Just wondering what other people think.