In my opinion unless it blows where you are 44-46 is too tight. We only go that high in 20+. Base tune on our boat is 40-42 for 8-10 knots. I always tighten lowers first uppers next and loosen upper first lowers next to minimize excess pre-bend. John White sailed his J/30 with much looser shrouds and a headstay tighter than max. Tune varies by mainsail shape which depends on make and age.