Aussie Nerd
RCC Addict
If you look closely, in that video both rigs are running 540s. It's definatly doable you just have to make a servo support that goes from one side of the servo to the link mount I believe oh and run an 11t pinion. Have a read through the threads, SDS posted the full details on how to run 540s somewhere.
Kieren
Kieren