Anybody out there had experience with the Ace Hobby's (Thunder Tiger) AT-6 "Simple Series". I have a Norvel .049 RC I planned to use for it, but after I opened the box Ace recommends the TT (of course) .074. It looks like it will be a great little flyer. How has it flown for you? With what engine? I have been flying the Top Flight AT-6 for a few months now. Can't wait to get this little guy in the air. It would be fun to get a friend to fly one, or the other, and get both in the air at the same time.
I emailed Sig about using the .061 cylinder and piston on the .049 block to upgrade, if possible. Will let you know what I hear.