[coolhandcountry]

Mike runs 19 series in alot of his race trucks. That i know of any way. I have ran the 7xl and 9xl on the same schulze controller. You really have to watch the gearing on a 7xl with 16-18 cells on that controller for thrrmalling. I didn't have a problem on with the 9xl. I can not comment on the 8xl for have not tried it. I have ran a L motor in the same truck as a xl motor. The xl is just better to me. I ran a 9xl and a 14 L motor. both have simaliar kv and run time but the 9xl would run a little faster but cooler.