Now I know I'm new here, so feel free to quietly shake your heads or even tsk. I've subjected fellow members to a pic of my new to me 2006 'oh so very' Indigo Blue CE22 in the 'Introduce Yourself' thread. I decided to give the new lad a new set of strings and minor set-up. The previous owner had 10's on it so I put it back to my preferred 9's and the difference is startling. Not just new string syndrome but improved fidelity and tonal balance, it sounds completely different and better, IMHO. My (long winded) point is that according to the hang tag the guitar came out of the factory with 9's so are they considered the optimal guage for it? I know getting into personal string guage preferrences is akin to politics and religion but is there an optimal guage that the guitar works best with?