I got email from the SIB guys about there motor. They state that the MVP ran too hot for there technology to work. That kind of worried me since if the MVP ran too hot and your technology failed, what would happen if the other motors got hot , would your technology fail. the MVP with the original brushes will get hot but work fine since the magnets are so strong.
I have since had a chance to test my MVP and P2k Pro. The MVP easily has more power than the P2k Pro motor with the big jim tuned brushes. It is however finicky as far as gearing goes. I run 48 pitch gears in a sedan so it probably would be better with 64 pitch but at this time I don't run the MVP that much ( my class is 19T, MVp was for if I go to some track that has only stock ).
I think the MVP is a great motor if you do the tricks big jim recommends and the magnets will last longer. The P2k2 is the best motor so far that big jim has tested, I believe it put up the best numbers he has had but the MVP I believe is the most consistent motor and the Magnets last longer, so I think that is why he recommends them.