im still using some yeah racing 3200mah 20c packs which are 2 or 3 years old now and still beating people, and they have never been balanced!
but i agree there isnt any difference unless you want corally plug connections to stop the bulge in the body
other then that just drive the crap out of the car
oh and
M-Chassis.com stock the Intellect 3800mah 50c lipos also.