Thanks for the reply..
I understand now how It could get you in trouble..
So bottom line is the Balance board can link seperate packs together in series to be balanced as a single pack, but you must charge it as the same cell count. (and pack sequence on the balance board)
So charge as a 6S and balance as a 6S.
Seems a good sketch could be added to the manual, especially if they are going to provide such a board..
Previously I made an adaptor to do exactly what the board does, and make my 2x3S packs act like a 6S pack. I would balance it seperately with a blinky,like it was a 6S pack and I could charge the packs in parrallel or in series, it wouldn't effect the blinky balancing.
Thanks for the heads up
Glad I asked..