HiÖ The extended length of the pole is 19 feet. We sized this by measuring the foot of the screacher . This would give you 38 feet at twice the length of the pole . The mast is 41 feet off the deck and its made of aluminum, By Metalmast. The screacher exit is about a foot and a half above the jibs. The support coming from the backstay/ cap shrouds is just above them at 36 feet. When I talk to the folks at metal mast be recommended that I did not put any strain on the mast above this 36 feet. This is a fractional rig, with a picture being worth a thousand words here is a link to the Maine Cat site in as the specs and a line drawing which might help
http://www.mecat.com/indexsail.htm
also the folks at metal mast mentioned that they would not try to add any more in the mast halyards because they might interfere with the existing ones, or chafe on some of the existing equipment inside the mast . We will store the pole on the deck. The more I think about this project the more I think that installing cheek blocks on both sides of the mast would be the easiest approach? With this being used only as a topping lift I think that we could popper that the cheek blocks, and put in a couple of cleats and we'd be done. What do you think?