Hi Towne,
Thanks for the advice! I did as you suggested and it took a little while but was 100% successful!
Ended up making about 50 edits into the SSE in Adobe Premiere and I found I needed to do a combination of syncing Puggo to SSE and vice versa depending on where the problems were. The two are actually perfectly in sync for very long periods, which I didn’t expect, but between scenes, and sometimes during, the 16mm print holds on shots for longer - it’s actually slightly more loosely edited in many places than the 35mm! (For example when Obi-wan squeezes Luke’s shoulder to revive him, the cut is a lot later and feels if anything a bit more natural. And there’s a few like that)
Puggo also goes out of sync during the wipe transitions, and between reels. I managed to get it to work without using any black frames and only repeated a couple of frames once so fingers crossed it shouldn’t be noticeable!
Thanks again for your help!