Six to one block and tackle
In a flee mart, a few years back, I picked up a harken 3 sheave block with a ratchet and clam cleat, and a harken 3 sheave block with a becket, both to handle 1/2" dia. dock braid, (gold and white) six times the length of my mast + 10', and made me a mast climber, the trick is to extend the line through all the sheaves untill the blocks are farthest from each other, then slip the bottom block in a canvas bucket and drop the lien in neatly, with the top block on top, when deployed connect the top block to your best halyard, raise the block & halyard to the top of the mast, secure the halyard, and by this time the bottom block with the clam cleat you hook to your chair, and up you go, under your own power, 200 lbs is lifting 33 lbs.