For those who seek info on Maximizer, you can make one from a MK V2 control board. The board can be 12v or 24v auto pilot or non autopilot.

Circuit would require:

1 control board
1 1k potentiometer (sealed)
1 momentary foot switch (or rewire the one in your cable foot control)
1 4x4x2 cast aluminum bud box

I verified this circuit today as I sit upon my throne.

The MK control board will work with any make trolling motor up to rated amps of control board .

Speed control only.

This is a proven circuit and it is waterproof.