I am assuming that adding a second receiver slpits the load in half but that may or may not be totally effective in maintaining the proper voltage to the receiver, depending on how many servos you are using and other factors. It may actually increase the chance of having a fail safe since you now have two receivers that might go into fail safe and need to re-bind instead of just one. And, the reality is that you are just guessing whether or not you will have resolved the real problem, which is voltage drop. I think adding a second receiver may be more of a band-aid than a solution.

Duralite explained to me that simple regulators do not have a sensing circuit in them and therefore do not have the ability to maintain the correct voltage if you get a heavy temporary load. This can easily be seen using an in-line voltmeter such as the Hanger Nine unit and operating all servos at once. You will be surprised how much voltage drop you will see if you perform this simple test. I could see over half a volt with just two digital servos. Fromeco regulators may have sensing circuits but probably not...According to Duralite the best way to maintain the proper voltage all of the time is to use a Powerbox or similar unit that actually has a built-in voltage sensor.

I run my F-16 w/o a Powerbox but it only has two digital servos (tailerons) instead of seven like my Bandit which has over 50 flights now with the DX-7/Powerbox combo. My solution for the F-16 was to use a 6.0 volt regulator instead of the 5.1 volt unit I had been using which would let the voltage drop to 4.5 volts under a heavy load on a brand new fully charged Li-Ion pack. With the 6.0 volt regulator I still see 5.5 volts even if I get a 1/2 volt drop..Gary