hello i placed a order for the Upgrade NAZE32 F3 Flight Controller Acro 6 DOF/Deluxe 10 DOF for Multirotor Racing. i ordered the 10dof deluxe. but i was doing some reading and people are saying that the acro is better. i will be using it in my 220 race quad. will the deluxe work the same as the acro? or should i return and buy the acro instead?

10 dof means that it has more sensors than a 6dof one. It's not better or worse, it just has more features like barometer, compass etc.

To answer your question - "acro" (6 dof) board is enough for racing, but it won't be any better than a deluxe one, you just won't use its bonus features.

Unless he will want to add gps to racing quad