Well i have a 10 gauge right (erine ball) with a epi sg 310 and i got the sg around 3 months ago should move up??? i got the 10 gauge when i got the sg and i got a line 6 spider III 15 watts
no.... switch to DR though
Just use whatever brand and gauge feels best for you. Try out a few different brands to see what suits you best. I used to use regs (10-46) and moved to 10-52's and like them better. I use D'addarios, but its really preference.
use whatever gauge you are comfortable in playing.