I swapped the 6mm for a bigger Air Hogs Jetscream 7mm. I have a little turning issues, but I'm sure it won't be hard to fix it. Also I have another video. As you can see, every time I hit the water jets (near the middle), the boats goes on its bow and spins out, why? I am going to put little ails on the side to help with cornering. What would subsurface fins do? I do not know much about the physics of airboats.