Wyndham:

My experience has been this with the ACW -

I assume you are using the function "Open audio with chords" in Version 2014

- in the ACW, set the correct Key for the song

- if the timing isn't tight, go through the song and set EVERY bar line, paying special attention to set BAR 1 exactly right. That will make BIAB play the song correctly

- ignore the chords in the ACW for now

- when you've finished setting all the bar lines, make sure when you click "OK - Send to BIAB" that you also click on "Make a tempo map in BB...", then Close.

- Now back in BIAB, revise the chords, correcting the ones you know are wrong. The ACW does a great job but, as you said, there could be extraneous notes that it thinks should be in the chord.

- DON'T FORGET TO SAVE at this point

Good luck!
LLOYD S