Boom-side blocks for jiffy-reefing lines

[Brion Toss]

Hi there,
First, the sheaves in the end of the boom are almost always there because it is really easy for a sparbuilder to plug an outhaul/reef module in there, and really hard to land blocks and entrances where they belong. So I recommend that we do what the sparbuilders didn't: install things right. This means bypassing the end-boom sheaves altogether (with the possible exception of very roach-y sails), and cutting entrances in the boom ahead of the new cheek blocks, so the lines can still emerge in the same place forward.
Fair leads,
Brion Toss