Steve, when it comes to going out on the cabin top to move the downhaul, well, don't. I did a few times, then asked myself why. Extending your body through the forward hatch works very well for that purpose. Next time just go through the cabin, step up on on the fwd cabin storage hatch area, and move the downhaul from there. Much more comfortable.
Last sail I retrieved the anchor from that position (the anchor was even hooked onto a crab pot, so I had to pull up a lot of weight) and it worked very well.