I thought JR refused to certify the use of their servos above 6V. As a matter of fact, when I called them to ask what could I use with the 8711, they said they recommend 6V.
Da just certified the use of their ignitions with 6.6V publically...
ORIGINAL: Mitsu1
Dual RX is absolutely not necessary on DSM2 and if you feel concerned, you might want to try the new Spektrum AR9100 with 4 remote antennas. This RX comes with a safety switch and also removes the necessity for regulators, as long as you use Hitec servos (HS5955) that can take 7.2 or 7.4 volts. So in fact, you save the weight and cost of two HD switches and two regulators.
You won't even be limited to using Hitec servos if you plug two 6.6 volt A123 batteries into the dual battery leads of the AR9100 receiver. That's what I'm doing. [8D]