Hello everyone!

I have a couple questions:

1) Imodded a Rio Ep with a brushess setup. It's a Turnigy watercooled 3600KV motorand 5A 3S batteries. My problem is that I have alot of prop walk, the boat rotates to the right whenIget up to a decent speed. It will flip if Ipush too hard. I've been messing with the stabilizers on the back to get it right but It's not quite there. Is this the only way to stabilize the boat? I've tried putting the battery on the left of the boat and that does help a bit.

2) My friend built a boat with me at the same time. It is the NQD arrow wind and has the same setup as my Rio EP. However, I've noticed that it runs faster than the mine. Why would this be? Mine is lighter, but maybe he has less of the hull in the water. What do you all think?

3) How can Iget some more speed out of mine if Ican stabilize it better?