Re: Beating to windward
I can't say that I have ever measured the sheeting angle. on most race boats I have raced on that have overlapping headsails the sail will be within a couple of inches of the spreader and may be even touching the shrouds at the foot. If you have a non-overlapping head sail then you definitely want the ability to sheet inside the shrouds. You do want to be careful not to "choke the slot" between the jib and main by sheeting in too tight. On a fractional rigged boat with a jib, the main is doing most of the work and the jib is secondary so you don't want to backwind the main much.
1979 Santana 30 Tall Rig