Sync fixed! New AJA driver 10.4.9. Maybe BM too???
Some have wanted to know. It took a couple of tries at driver updates from AJA, but I can finally say that Final Cut Pro 7, on Mavericks (Mac OS X 10.9), with an AJA capture & monitoring card (io XT for me) for feeding your client monitor, is feeling reliable after testing. There were some crazy lip sync issues at first, but the new drivers from AJA (10.4.9) fixed it. So like the famous Monty Python line goes, “not dead yet!”
Maybe Blackmagic has a fixed driver too?
-Christopher