For the record and others - users can log into my.scouting.org > Click Manage Member ID > one of the BSA # will be there marked PRIMARY > then add the other MID (BSA #) - you want to make the one that is your unit registration PRIMARY > Then go to Scoutbook.com and log in using your my.scouting.org credentials > all training syncs to Primary - all data has to match
This does not deal with 2 Scoutbook accounts but is a start