ORIGINAL: MaJ. Woody

I use two 6V batteries and two heavy duty switches plugged into two different ports on my RX. No regulators for me. I am also using the 9C. Never had any servo problems with batteries hot off the charger.
I am in the camp that simple is better. I stay away from additional devices like regulators and matchboxes when possible. One less link in the chain of things to fail. Everyone has their own preferred methods and that's OK. Just do what you feel good about. As far as Y connections I use shrink tubing to secure the connection. Never had a problem.

Dom