Bri,
I'm curious about something. Whenever I've had to sync two things, be it two audio sources or a video and audio source, etc. (do this all the time in video prod), I usually just sync the head (start), then go all the way to the end, and stretch/compress the timeline of one of the tracks until I have tail sync too. Then, I'm done, with only two steps. This can be made much easier by making sure to have a head and a tail "slate" to sync from (loud distinct hand clap into both sources at start and end work great for this, but you can do it from the music alone too if you have a good NLE). Now, some folks might cringe at the thought of stretching, but the reality here is you rarely need to stretch more than 1 second, but probably more like milliseconds. Let's say it's a full second over a two hour set, that's only stretching one second across 7200 seconds, and as far as I can tell, with a good algorithm, won't change pitch and won't be noticeable at all. Once the head and tail are synced, then render out and track and flac. This is easy in Vegas, but I've got to think it would be in other mixer apps too? Am I missing something here? Is this just a totally sacreligious approach? Coming from video editing, this was just a no-brainer approach for me (as long as the drift is minimal, which it usually is for me, less than 1/2 second or less nearly all of the time). How do you even make an "adjustment" every few minutes anyway?