I am going to run the stock 50amp with the 2900kv with the 3s and hope for the best lol! On my Shark I am using a Turingy 60amp ESC . It should be super fast with this set up If the 50amp dies from to much voltage I'll just get another 60amp turingy esc they are only $30.00 http://www.hobbyking.com/hobbyking/s..._Boat_ESC.html

I'll have to look into those props your using thanks!