RE: GP Slow Poke 25 size
I built one as per plans, I don't really like it very much. Seems to fly within a pretty narrow speed range and stalls hard if too slow. I had to add a lot of weight to make it balance and I think it had a bad effect on flying characteristics. That said, if I built another, I would straighten out the polyhedral on the wing end and use barn door ailerons. I would also consider extending the nose to correct the balance.