That's a nice design. I'd be tempted to run it through the splashboard to the cockpit.I doubt I'll be adding a pulley on the top of the mast. Thank you all for your input.
Sorry to confuse anyone. I type cunningham, but I was referring to the "vang", which you tie with the tail of the halyard to hold the boom down. The cunningham is rigged along the luff, leading edge along the top (gaff) boom, of the sail. It requires a 2nd grommet and a cleat on the boom.It can also be tightened to hold the boom down in heavier conditions. I personally tie a second 3:1 in the cunningham so I can crank the boom down if I need too.