Sounds like you've found a good setup. We typically set the uppers and lowers at the same tension, between 39 and 41 for moderate conditions of 8-14 knots. If it's looking to be a really light day, say 4-6 and sloppy I'd loosen 2 turns all around. At the top end of the #1 (15 knots true, 20 apparent) I'd tighten 2 turns and maybe another two at 20 true, 25 apparent. I try to tighten lowers first then uppers to get the bend up high. My sailmaker (UK) is always telling me all my fiddling is just getting the rig out of wack.
Seems North has been suggesting very loose lowers (relative to uppers) for light air. Anyone care to comment?
