Almost all Trolling motors need my MBP Stainless Steel Insert system. This is especially true for the Minn Kotas. Why? Because of materials used by trolling motor manufacturers that over time become abrasive. Materials that become abrasive or rusty over time have no place in harsh environments. Pins that are not stainless are such a problem that, over time, eat plain cords quickly. Motor Guide actually use a plastic sleeve that helps cut down on wear.Using highly polished stainless steel, my system makes for smooth pulling points at the entrance and exit. The addition of a plastic sleeve in my system also gives the stainless cable a smooth surface to work on.