Thanks everyone for the replies about using shorty batteries with the 22T. I rode my motorcycle down to Associated Electronics today and picked up 4 Reedy 4000mah 60c shorty LiPo batteries for $66 each.
I noticed that my X4 charger states in the manual that lipos don't reach their full capacity until they've been charged/discharged 10 or more times. Does that sound about right?
Thanks everyone again for the info and advice.
Allen