I flew 1/4 scale planes years ago and after getting back into the hobby I wanted to fly the large gas planes. The first things I bought was a new DA50, some radio equipment and a 110" civilian type plane. My question is why do we have 7.4 batteries when it seems most components need to be regulated to 6 volt? Why are servos claiming 350+ torque when you need to regulate the receiver back? The DA50 ignition must also be regulated. I hope I don't appear to be on a rant but am just wondering why I was sold these batteries if they are needing another $100 thrown at them (regulator) to make them usable. I'm sure my inexperience is showing through and thanks in advance for your replies.