I used to brew a LOT. Probably, too much. But, I haven't messed with it in years. I'm toying with the idea of getting back into it... it can be a lot of fun, but i used to bottle everything in 22oz bombers, which is a pain in the azz. What kind of head do y'all get using corny kegs with CO2 tanks, assuming your brew and glassware are somewhat close to optimal?