CS4 has a problem removing extra frames. If you shot 720p/30 over 720p/60, I wonder if the issue is Premiere not removing the extra 30 frames. Maybe try doing an Interpret Footage on those clips to force the 30 fps frame rate?
I already the found the solution, or at least my solution. I basically just slowed the video track on the timeine by 80%, and it syncs just fine, no drifts or anything, I tested it on a two minute shot, it syncs perfecty beginning to end. No obvious motion blur! What's funny is I did this last time, the only problem was I slowed it down by an odd number like 79.6%. I'm sure my solution isn't technically the best thing, but I don't see any flaws how it looks after exporting it.
Thank you for reporting your solution with your footage.
Just a heads up: You didn't shoot 1080p you shot 1080i. That's 60 fields versus 30.
If you combine this with straight 720p footage, sequences/ timelines can get out of whack.
By the way, this can cause problems during export because AME will choose internally to deinterlace or not.
Well, you need both here.
BTW sync issues can also be caused if your Time Code is off or at a different type between your Edirol and the cams.
Codec: DVCProHD 1080i30
Resolution: 1280 x 1080
Frame Type: Upper Field Interlaced
Frame Rate: 29.970
Codec: DVCProHD 720p60
Resolution: 960 x 720
Frame Type: Progressive
Pixel Aspect 1.33
Frame rate: 29.970