Gary,

I believe most booms have enough flex in them to make a vang a
reasonable adjustment. I know mine does, and I have mid-boom sheeting.
Also a free footed main. So my vang is basically an anti lifting device
used off the wind but I can get enough bend to shorten the distance
between Tack & Clew to get enough increase in draft without adjusting
the out haul.

The leech does kind of go loose as I go off the wind. I lose the upper
part the main. I've been known to add the preventer to act as a barbar
hayl to reduce the twist and get the tell tales flying. (One man's
observation)



http://community.webtv.net/tassail/ThomPage