I have and use a Sto-Boom on my TOCK. I have a manual, and can copy it for you. Having the boom at a right angle to the mast lets it come down easy. I can take some pics of how it is rigged. The crank fitting under it on the mast broke and until I get it fixed, I do it all by hand. Because the sail is old, sometimes it comes out of the track on the way up, but down is quite quick and easy. This is my first big boat (summer '08) and I have not had it in very heavy wind or seas.
Any chance you still have a copy of the Stoboom manual that I might obtain?