I am getting really close to a process that is working for me doing backing tracks.
Step 1 - Take recording of a song I want to make backing track and pull it into the ACW. The hardest part of this is getting the start position correct and even then the audio recording will get out of synch. I guess because the tune I am using isn't totally consistent time wise....this will get to my question.
Step 2 - Find closest style to original by first getting the drums as close as possible then add bass and simple guitar
Step 3 - Clean up the chords - usually find mistakes especially as you get to the end because of timing.
Step 4 - Add the signature sounds either live in my duo or if it is something I have to have just add it in to the backing track mix.

My question is using the ACW there are timing issues that I think can be corrected if you fix them before exporting them to BIAB. If I do this will the timing on my backing tracks fluctuate as well? I only use the original recording to set up the structure and make sure the chords are accurate but it gets difficult to listen to when it gets out of synch.