Neal,

James has given you a damn good appeasel and where you are out of
adjustment

Lets you and I talk a little about sail trim,
head sail trim.
That line is to let you see the curve of your sail, parallel to the
deck. It shoes your trim. Most salts use the seams on a cross cut but
the line is better

Adjustments on the head

Sag------Is the amount of slack in your forestay. controlled by back
stay tension

Twist------ The amount of fall off of the sail as you lok aloft

Shape (Chord)-----Controlled by Sheet car position, Sheet
tension,Halyard tension and leech (roach) length

If you look at your "Line" you will see a definite hook leading into the
leech. It is a indication of to tight of a leech. Someone mentioned
Leech string tension, Ease off on it until you get a flutter in the
roach and then draw up on it just enough to stop the flutter. The hook
should disappear Check the back end of your line