yeah i had been thinking about getting one of thos.
i seen that everyone and there mother had the pro4 motors and everyone loves them sooo much. i liked my ballistic 5.5 but in a small tight track it just diddent have the umph i needed to hit the doubles from a dead stop. when i had it on a large outdoor track it was great, had plenty of room to stay cool.

i ended up buying a pro4 4600 and a pro4 4000. i might sell the 4600 and pick up a 4.5 550 can instead. ill use the 4000 for tight indoor tracks and the 4600 on bigger indoor or the 4.5 500 and keep the 5.5 for outdoor and large tracks. but either way you just cant go wrong with the RX8