i have the same motor set up you will need to cut the shaft down so you can get a prop adapter on i've been useing a 9x4.7 gws with a 11.1v/1500mah li-poly and it is just balistic on my edge 540 shocky i don't very often get it at full throttle as it just disapears had to strengthen the nose up with some 2mm ply strips as it has twisted the nose off