Does anyone have suggestions on how to change the outboard motor height at home with a boat on the trailer? I need to drop my 2017 Mercury 115 ProXS down one hole on the transom of my tritoon, but unfortunately both the upper and lower mounts in the motor mount have holes instead of one set having slots.. which means I'll have to completely unbolt the motor from the transom to move it instead being able to leave two of them in and sliding it down (if it had slots).