Knife Brother,I agree totally,I had an H-9 Edge with a Brison 2.4 and other than Hover,the 3D was awful,We awitched to an S 1.60 and it was much better.I agree that the 40cc gas is too heavyand it is not consideration,but if I need to add 5oz anyway,I want to add it in something I can use,like engine.