I am purchasing XRay 808 Buggy with a Futaba 603FS receiver. I got a Futaba 3PMX.

Anyways what servos should I get????
I was looking at Hitech 7955 or the Futaba Bls451

Which ones to get????
Also if I run the Hitechs can I still use the Futaba FASST system????

And what receiver battery should I get? Should I get the life battery or go with Lipo been reading that the life battery is better???

Anyways thanks in advance for all your help.