This is my method for D.c we will see what comes out, its not always correct but 7 out 9 tries..ill take my chances..lol. Notice under 11 3,1 there are only doubles... or some cases 8 pairsums after a specific drawing all contain the same number...for example under 9 1,2 most numbers that follow 348 (while 9 1,2 is isolated) only have 8s. I've been noticing a lot of things. Especially with D.c, with consecutive 8s, the following drawing is likely to have an 8 pairsum ending in 1. It's amazing what I'm noticing.