Oh great a newbe with a problem. Rc-revo brushles mount flex's?

Ok, $$$ bucks later, and I love this thing. I purchased the 5mm upgrade, 2 Maxamps 7.4v 4000mah and the motor brace. Thanks guys it was worth getting. Also I greased the trans which made a huge different, and swap the rear diff which didn't feel right.

I need a center diff, this thing is so nasty. I can't wait to run my buddy's BB RB 523 Revo which is very fast. Also the stock radio is causing me to glitch once a go passed 50 ft. What radio should I go with? Anybody have a good radio that works great with the Novak HV systems?