Hi Thor,

There are a few things that can be wrong:

1) you've got two props with the same sense of direction, normally one will be left, the other right. If you have two which should turn in the same direction to 'kick water away from the boat', as you put it, but one simple turns in reverse, you should get the correct prop.

A bandage would be to switch the wires on that motor, but due too the propwalk, the boat will never run straight...

2) The props are left and right, but one motor has been wired in 'reverse', that's something that can be remedied easily, switch the wires on that motor.

Hope it helps.

Regards, Jan.