Hello...This is my first post, after searching and not finding answers. I am mounting a stone guard on roller trailer. To mount the guard I have to take off the winch mast. When I loosened the winch strap, the front of the boat came up a few inches. Is this going to cause trouble for an aluminum boat? The rollers are holding the front end up. Is this normal? I think it could cause stress cracks where the rollers sit. Or am I worried for no reason...TIA...Karl