Again, an ignition BEC might be the best bet here. I have not been brave enough to try one yet, but there is one hanging on my board in the shop. It seems another move I will make this off season is to start converting to Lifepo or A123 batteries. Should be a good combo with the IBEC. There just will not be enough room in my plane for all that stuff otherwise. Kinda wonder what size tank is recommended?