svk - clock certainly is an issue, even over ethernet. I believe DP has a setting for ethernet sync, but with AUNetsend/Receive you must clock both machines. The only way to do that is with TOSlink from the master machine (or v.v., but I wouldn't recommend it).
You have to go into Audio MIDI Setup and tell the slave Mac to clock to its digital S/PDIF input. Then the drifting stops.
Max of FX-Teleport fame told me that, by the way - I can't take credit for having known it before.
Also, jbm's suggestion makes sense (even though I also made it [:)] ) - Logic's PDC can be a little quirky, I've found.
You have to go into Audio MIDI Setup and tell the slave Mac to clock to its digital S/PDIF input. Then the drifting stops.
Max of FX-Teleport fame told me that, by the way - I can't take credit for having known it before.
Also, jbm's suggestion makes sense (even though I also made it [:)] ) - Logic's PDC can be a little quirky, I've found.