Hi,
With the high-torque digital servos these days you really need a power connection for each two servos because of the current draw of the digital servos. Let me explain something about digital servos that most people do not realize. When you hook a digital servo up to a current meter, if it shows the servo is drawing 1 amp what is really happening is that the servo is on for 1 millisecond and off for 2-3 milliseconds. What you see on the meter is an average current draw. A servo drawing 1 amp is really drawing spikes of 3-4 amps every 3-4 milliseconds. What this means is that the connector supplying current to the receiver has to supply these spikes. Since you can loose a 1/2V at 3 amps on a standard R/C connector coming from the battery (or regulator) to the receiver bus you want as many connections of power as possible. Ideally you would have one power connector for every servo but this is unreasonable. Making a general rule of 1 power for every two servos seems to work out pretty well. What I was saying was to put two JR connectors on each Deans UltraPlug output so you end up with 4 power connections into the receiver. This minimizes the voltage drop on your receiver bus so your servos do not loose too much power due to voltage droop and your receiver does not go into a soft-reset condition. The issue is not the regulator, its dealing with the power connections into the receiver, the standard R/C connectors just do not handle the power (amperage) requirement of digital servos well. This is why Spektrum (JR) made the PowerSafe receivers and why we make PowerExpanders and PowerSystems, even for 50cc size planes. Digital servos are different animals than analog servos and you have to treat and feed them differently.