Should all the weight of the boat be on the keel rollers,and the side wobbly rollers just touch the underside of the boat,or should there be some weight on the side wobbly rollers ????
There should be weight on all rollers in most every case or why have them.
The only time I see a roller not being utilized is when it is the 1st roller on a bunk trailer and is only used to protect the bow and assist lining up the boat.