So here’s one fix that seemed to be working and I’m curious what the thoughts on this approach are:
In Adobe Premiere I select the PAL clip in its bin, right click and choose to “Interpret Footage” – I then change the frame rate from 25.000 to 23.976 (the base frame rate for my project).
If I drag this clip to the timeline and advance the audio by 12 frames it seems to play in sync.