I'm currently using the MPI regulators without the heatsink. There has been a lot of discussion of them failing. Now I'm a bit worried. I am running two MPI regulators with two batteries directly to the receiver. Digitals on all surfaces except throttle and choke. 10 flights without issues, but no hard 3d yet.

Tom, which MPI regulators do/did you use?

Has anyone used the FMA regulator?

Does anyone know how many amps are put on the flight system with 4 hitec 5645's, 1 5955TG and 2 standard servos?