Kufman, RCCA did a test and the SS was faster than a 10 turn KR, wait no never mind RCCa is just payed to publish what the manufacurs tell them too. but i am willing to bet that you can't use hacker and lenther motors and you have to use Novaks then you will probally see people like Billy Easton still using brushed simplly because they don't mind the work and it is faster.