Keven, I don't think I am missing the point. I run 5 cells (Nimhs, Nicads) to get more torque and speed like you, although usually only on bigger stuff where torque and speed are critically important. Most of our newer servos and receivers are rated at 6v...not 4.8. So you need to ask yourself why you are regulating to 5.7 to 5.9 v. (depending on the regulator).

I don't know about this year, but last year at the TOC all of the pilots used 6 v. Duralights or Nicads (no Nimhs) and not one used a regulator.

Hoverit, If you look at the discharge curve of both Nicads and NiMHs you will find that both of these batteries hold a pretty steady voltage all the way to the point of most of the capacity used up. Usually we consider a 4 cell pack fully charged at 4.9 volt and completely empty at 4.7 volts.) I'm just not sure that using a regulator to hold a constant voltage is accomplishing much.

For those considering using a voltage regulator, remember that most will fail (shut off) if the battery voltage drops below the specified output voltage. A voltage regulator in this situation only compounds problems of a low battery.

I’m really just suggesting trying without the regulator first.