Hey Scotty,
Your Jib Sheet should bisect the angle of the Clew 50/50 under normal
conditions. As the wind picks up, move it the back to to let top fall
off as you put more of the tension on the foot of the sail. As the wind
gets weaker, you want to move the sheet forward to tighten to leech and
make the sail baggy.
Often, with Auto furling head sail, people reduce sail without moving
the sheet car to maintain this angle relationship.
Proper Jib sheet angle will be felt in the helm, the heeling will be
less and the "Groove" will be wider.
http://community.webtv.net/tassail/ILLDRINKTOTHAT
http://community.webtv.net/tassail/ThomPage
http://community.webtv.net/tassail/IDONTFEELGOOD