Yeah, we've discussed the wait-to-wax issue a zillion times. Opinions (and I presume experiences) differ, and we've agreed to disagree.
Short version: I wait 90-120 days as per what the paint manufacturers all said when MirrorFinishMan queried them directly and this is what my two painters also recommend. I've experienced (first-hand) how much even baked paint can continue to harden up after a couple of months, and no way would I want to interfere with that.