Don't forget it's the door hinge that supports the weight of the door, not the popper.

All you need is to move the door on the hinge, and on a properly balanced/mounted door, that force should be minimal. Our door is balanced to stay open in any position. It's not balanced to swing itself closed.

I've been tempted to mount a sub in place of the donut spare and hang my full-sized spare on the outside of the door, but I'm worried about the hinge having to support the extra weight.

If anyone has any info or opinions on that, let me know...

-Daver