Thanks! Ppl have suggested about 6 months out before, does that still sound about right?

On the Tues/Weds thing, does time of day seem to matter?

Does airline tend to matter? For us, we're almost definitely looking at SW BWI-SJU direct. I'm not thinking that their fares vary as much as some of the more conventional carriers. In my experience, it's generally been best to simply book with them as early as possible. Anyone have different experience?

Thanks again and sorry for thread-jacking once again...