This is just a passing thought that came to my head and no testing has been done whatsoever yet, but I will experiment later myself..
We all know the standard progressions for single ( 1,2,3,4,6,9,13 etc ) and double (1-1, 3-3, 9-9, 27-27 etc ) dozens but, supposing we had too much to drink one night and got the betting sequences mixed up ?
For instance, if we were made the mistake of using the single dozen progression whilst betting double dozens.
( by this time we would most likely be seeing double as well )
So our bets for double dozens would now be 1-1, 2-2, 3-3, 4-4, 6-6, 9-9, 13-13........etc.
I will leave it to you guys to test this as well and maybe the idea can be tweaked to give a decent sort of MM method for the double dozens..and one which does not involve the risk of huge amounts, as we can get sometimes with the normal double dozens progression.