I think this explains alot if I can get it posted, if your ignition was designed for 6volts and not 4.8v, 25% would not be wasted going through the heat sink of the regulator on the ignition. I will send you what I found to your e-mail address because I can't get it to upload and post since it is from flying giants not rcu. this proves my point in a round about way. I enjoy all your feedback it is a learning experiance.