Hi Tom;
I would not hesitate to build anything that Mr. McFarland designed. I don't think he had a bad one. I like the look of the wing, and I thought I might have the original Hobby Helper plan, but that number, 662A, doesn't show up on my inventory list. I'll have to do a physical check this weekend.
I don't think you will remember me, but I remember you from my R/C sailplane days. I flew the NATS at the sod farm in Lincoln, Nebraska, in '82 or '83 when you were flying with the Dodsen crew and flying Windsongs, if I remember correctly. I was with the St. Louis gang and several of us were flying Bird of Time. I was in the hunt in Unlimited until the last round and a drew a second to last slot in the flight order, about 6 o'clock in the evening and dead air! Hard to do a ten minute thermal duration in those conditions!
I eased out of sailplanes in the late 80's and been doing the stunt thing ever since. I have some soaring stuff stashed away for one of these days, though. have you been in the stunt wars for long?
Good luck and have fun,
Dan McEntee