Mine has Velcro and that's how the soft top attaches. No snaps or mechanical fasteners of any kind.Velcro good for as fast as your Land Cruiser can go
But that Velcro is still attached to the upper, hinged, part of the trailer - not the tub. I can open up the tub with the soft top on and there is no latch or catch of any kind. Are you saying the soft top attachment should be over the gap - on the tub side of the opening?