Help! Hey all, what battery size are you using for your Turbo Tutors?

I'm setting up a Turbo Tutor as a 3D/acro plane. I'm using Power Pack C and a 3S battery, but I'm trying to decide on what size of battery, since I've got some 2250mah and 1300mah from other RC stuff. Since I'm fairly new to 3D, I'm not sure if it's better to learn with something lighter, since it'll have less inertia in the event of a screw up. Or is it better to have something heavier, since I live in Chicago and it's fairly standard for me to be flying in 15 mph winds. Any advice would be appreciated!