Thanks for that Charlie. One (oh sure...) last question. The PG video tutorial showed opening the audio file to be split with the open special > open special with stem splitter and then working with the file in ACW rather than your suggested open regular open and then use the AEW.

Can the PG method with the use of the ACW be used to set the first measure just like the method you described using the AEW?

If so, then the key seems to be to set that first measure first before any other manipulations. Does this sound right?