Larry, I was wondering if you have any experience with the Cunninham EI conversion G62? I have one of those that has the EI in the backplate mount, round and enclosed. It uses an RCA jack to plug the power in. I am thinking of throwing that one in a GP Ultimate bipe 160. That plane flew with a DL 50 previously, but I have this G62 from that estate as well, and have as of yet to run it. I have a G38 with the exact same conversion. I figured I would throw that in a 1/4 scale WW1 model some day.