I'd wager you're better than you give yourself credit for. I'm an acoustic rhythm guy; just can't seem to make sense of theory enough to play lead. So I've never considered myself to be very good despite playing in a band since 2005. I just figured I'm good enough for what they need. "When it comes to guitar, I'm a great vocalist" I've said. But then again enough other sound guys and players have complimented me on my "style" that I realized I must be doing something right. We're switching from a big band to a more stripped down, acoustic trio this year so it'll be interesting g to see what I can do when I'm not competing with a drum kit and electric guitar.