SpinnakerJohn,
Your hound height for your spin halyard is determined by the luff length of your chute. You should call the sailmaker that made your chute with all your dimensions and see what they say. When I did my P-19 mx chute I had an Aussie North 450 sq. ft. chute. If I recall correctly, I measured the luff pulled tight, then subtracted 1 foot(your sailmaker should be able to tell you this amount). I then took that measurement and measured from the tack at the end of the rigged pole until I intersected with the mast at that number. That should be where your hound would go.
Hope this helps
Todd A. Hart


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White