Before upgrading to a "hobby grade" electronic in my H.L. Pershing; I upgraded the gearboxes from 3:1 to 4:1...
The 4:1 gearboxes gave me more control a low speed with the RX-18 and the 27 MHZ controller; allowing me to do this:
http://youtu.be/3e0tEpXPh0o?list=UUoWjHTJi7Z1uGnVnrbH3GxQ