MPI Servo's
How are the hi-torque metal gear servo's from MPI. Pro's and con's are welcome. I ordered 5 of them and will see action in a 1.20 Staudasher. Should I run a 6 volt system with them or will the 4.8 1400 MAH battery be OK? What should I look out for and what kind of servo arms should I use, metal or nylon?