Oops - that was me who posted as J/30 - I forgot to log out after doing some forum admin tasks.

Anyway - I'm very happy with the size of the #3 as is, particularly since I bought a carbon fiber blade last year to replace a 20+ year old dacron sail. The boat points great and moves well when the wind is up - verified by comparing boat speed and heading during multiple J/30 OD races last year. When the wind is up, I don't want more sail area and the #3 drives the boat just fine.

The question becomes, when is it right to switch to the #1 again. What I've seen for the most part is people keep up the #1 and ride it out. I see no advantage for a larger #3. I don't have a #2, but folks who do indicated it's a great sail for them in other posts on this forum. It's just got a real narrow range where it is effective.