Just a note to all who use this and maybe the 750lb .......i've noticed some bowing of my engine compartment starboard material between the 2 hinges after multiple uses of this bad bag.......I would suggest a 3rd hinge or a metal angle bracket behind the hatch to prevent the bowing......also the screws attaching the hinge to the door are pretty short.....would suggest longer screws or thru bolting with washers to prevent failure due to the increased pressure from this big bad bag