i just got back from the field with mine and i am hammering on this thing. now what i have been doing is going up 1500 or 2000 feet and letting it deadstick, then aerobatics the whole way down. i dive it and then snap.. god! the air whistles around this thing, it sounds like a huge arrow or something! then i bring it around and slow it to a crawl for the deadstick landing. at 12 pounds, this thing is gentle as ever.