Oh boy..there's a lot of strings out there... :rolleyes: You can feel on the string where it bends across the fret. When they are worn,there's a kind of flat spot there. That's when I replace them. The strings most likely to break are the E (1st) and then the B (2nd).
I have broken quite a few E strings, not very many B strings....and I know some one will say it,so I will first..I've never broken a G string.... :D :cool:
Always capitalize "BLUES"