Hi,

Please look at Annapolis Performance Sailing ... catolog 2011/pg56 ....

You will find in the upper left corner a pic of a Harkin "Quad Block/ part#H2631 that you can use as your "Boom Block". Combine that w/ a Harkin part# H2687 (pg57) for your "Bottom Block" and you will have a 8X1 Mainsheet Stack.

Now, I like Lewmar Blocks and have used them for my 7X1 Mainsheet Stack .... but I do have a 8X1 Mainsheet Stack using the Harkin Quad Block since I have been unable to locate a Lewmar Quad Block .... I set the 8X1 Mainsheet Stack up for use on my P19MX to control the mainsail leech ... but ... I found out that there is a big difference between a 7X1 vs 8X1 in the amount/length of mainsheet line that you need to take-in or ease-out. For me it is generally too much ... and I went back to just using the 7X1 systems ...

Harry
H18Mag/P19MX