I use standard tuning with 10-47 Elixir Nanowebs on my Mugen THE78-12 and most people assume that it is a handmade £2,000 guitar - particularly when I have it out with the matching Mugen THE78 (6). Max rather liked the 6 at Ash (Canterbury) when he was over in the UK. Both benefit from Brian Rodgers setups and the 12 has a saddle with each of the 12 strings individually intoned.

I use the Shubb c7b a LOT for the mock DADGAD (well, in my case a tone up) effect. Allowing for the tone up that gives a lovely one finger E (fretting the G string at B that allows you to pick out tunes on the fatter strings below or top E and in the latter shape you can add a B on the top E string if you like). There is also a two finger D shape using the F# on the D string.   A I like best with three fingers - EAEAEA or you can do it with two as EAEAEE but there is a variants up the neck at EEEAEE.

B you can play as a 4 string internal chord omitting the E strings as BEBB or as a 6 string "thumby" as BBBF#B.