Hi. Yep been through every bit of literature on offer. manual control still needs close to 85% to have strong braking and have set to that for now. with the same trailer and boat (3t) it needs only 50% max setting. A difference in the tow vehicle for sure.
Even has one side of the trailer jacked up and there was no noticble braking at all with foot on the brake at 20% minimum, needed to use manual override to get the brakes to act on a free spinning wheel.

