I am new to unresponsive and ball-bearing yoyos. In my old wooden axle yoyos - i could easily look at the loop around the axle and see it wearing down and replace it.
On my new unresponsive yoyo, the loop doesn’t seem to fray the same way, but the entire string length seems to very quickly get ‘fuzzy’ - which I assume is from all the friction of the binds. Is there a good indicator or something I should look for that implies impending string breakage? Is there a rule of thumb for the number of hours of play a string can take?