Regarding the 76. I hope that it isn't too much power. I bought that Pitts a year ago on ebay and it wasn't for the 45 size. Auction fever on my part. I figure that I can take off at 3/4 throttle. I have a couple GMS engines and the kids love that Gold Head, they want me to "Pimp the Plane". Hopefully it works out. NO building today, I only got a two-hour delay.