John, I built up the E-Flite PT-19 and reviewed it in the February 2010 issue of Flying Models. It is a handsome plane in flight. I had a good R/C flyer test fly it in the R/C configuration first, and he gave it a very favorable review. I then converted it to C/L and it was flown by a number of people, including me. You definitely want the larger of the two motor/ESC (Park 480) combinations recommended for it. It still wouldn't do the full pattern or any square maneuvers, at least with the recommended line lengths, but it did do decent loops and maintained stable inverted flight. The only trouble I had was when it nosed into the ground because the grass was too tall, and burned out the motor and ESC. It seemed to handle the APC 12x6EP very well.

I do recommend that you check out the review article--I can send you a copy if you can't find one. I have a friend who became a B-26 pilot in WW II and who trained in the PT-19 ... and I'd love to have a full-size one as well as the attractive model...