I have a Saito 1.00 in mine. I fly off of grass and I've never had a problem with mine nosing over, but then I do taxi mine with full up elevator on max high rates. Like Tailspin said, make sure your gear isn't on backwards, and make sure your wheels aren't binding. They should spin freely. When I went from asphalt to grass, I took off my wheel pants. They will tend to drag the grass a bit and this will also help aid a nose-over.