When you use a powerful motor with a large and effective propeller, the boat may pull to one side (the technical term for this is “list” – the boat takes on water and tilts to one side) at high speed. That is due to very strong propeller torque, which refers to its twist-force. Assuming you have a clockwise prop, as water resists the clockwise rotating prop it will cause the boat to roll in the opposite direction.
Torque roll can easily happen on a v hull boat when it is overpropped. The problem can be decreased by going to a smaller prop but a higher pitch for making up the speed loss.
When your boat is small there is not much you can do to balance the boat using counter weight. Turn fins do not really help much either.
Trim tabs do not help much by themselves. A re-balance of the boat by changing battery placement can help a little bit. Still, unless we lower the power of the motor or switching to a smaller prop the torque roll will persist.
How you weight balance a boat is totally configuration dependent. The rotation direction of the prop is also a factor that needs to be considered. Sometimes the problem can be easily resolved if the battery pack is large and heavy enough as a counter weight!
FYI, we have tried many strange ideas. For example, we added a trim tab to the SIDE of the boat it is leaning toward. Still, at full speed the boat keeps pulling to one facet:
