I sent an email to the distributor to cancel the order and described the problem that was described by several flyers. it seems that a tip stall occurs. Will see if they honor my request. If not I will work on the wing and try adding a slight wash out.

Were you using flaps on your flight. The two other reports did not mention if they did or not. Also, I intend to fly it with floats as I have water surface only for my planes. The Canadian web site indicates, I believe, that flaps are an option.

When you say a long roll out for take off, was it excessive? They claim the model weighs only 6 1/2 lbs.

If I end up having to accept it, so be it. Probably wont fly it till winter. Seattle winters are sometimes the calmest and the extra density of the cool air may help. Will post results.