I been having trouble launching and also getting the boat back on the trailer ave looking for recommendations. When i launch the boat the bow is getting stuck on the bow stop roller.when getting yhe boat back on the trailer the bow hits the bow stop roller and i struggle to get the bow over the roller. I followed the manual which says to have the fenders a couple inches under water. I am not sure if the hitch is too high or low or something else I am doing. Any suggestions?