Thanks very much for the comprehensive reply! I am still sort of new to beat mapping, although i've been using flex for years. Smart tempo has been a little confusing to say the least as Logic does not do a great job of explaining how the tempo is embedded,
This particular song is an extreme use case: Its technically 2 different songs, with several tempo changes and a section between them that is essentially just a long off-the-grid crescendo. The drummer was PRETTY good, but not perfect. The band was a mixed bag of kind of off performances that I needed to align.
So here was my use case prior to my last post:
Remove tempo information for all present recordings Group and phase lock all relevant tracks Beat map drums Flex respective instruments
Despite that, I still had some weird placement issues like described in the video above, where the waveform view on the timeline was not representing what was actually playing back. Or where changing one flex marker would speed up or slow down entire regions (that were not in proximity to the flex edit I was making!) Again, this was with audio files that had their tempo removed, so as far as I understand it shouldnt be making such broad adjustments. Based on my video am I just using it wrong or am I experiencing something not intended?