ok... I take it this is a single line halyard/tack line set up. My feeble mind can't figure out how that is run.
I might need to set this up because it is clearly what is keeping me from being in the top 1% of sailors around the world.
<img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />

I guess my question would be where is the back to back block for the tack line. is there any problem with this set up when rigged with the jib?
Do you think there is a significant wind effect if the halyard for the spin comes down to the front beam about 1.5 feet away from the mast?