if he's got it setup well and he can fly it, then it's probably good to go, but with that said...


add some weight to lower the cg like a bigger battery super skids or training gear. Also make sure the weights on the flybar are all the way out, and you could even have 2 sets on there to dampen the effects. You can also move the swash links in a hole or so on the servos to tame down the side to side motion =)

If you've adjusted a bunch have your friend try to fly it again and see what he can do with it.