One more thought and things you need to do…
When decks are set they raise, twist and flex before the mounts are installed.
When mounting a trolling motor bracket you absolutely MUST level the bracket. That can mean a bushing spacer, extra rubber washer or other system to level the bracket. The top edge of the extruded bracket, not the scissor arms and upper bracket, must be Set on one plane.
The front and rear of the bracket must be on a parallel plane and this may require spacing the bracket on one corner, adjusting tension or loosening one bolt over the others to prevent preloading twist into the bracket.
Twist is what makes the brackets hard to deploy and why you have to ‘step’ on some brackets to lift them up.
Just keep the front and rear on one plane.
BCB