Simple one. This has bugged me for awhile. If your KA is 3d6, 9 dcs. How do you split that? Just curious. I did a search and it didn't bring up a previous thread. Sorry if this is redundant. 

You round in the player's favor, so halving 9 DCs would give a 5 DC attack which (handily enough) equates to a 1 1/2 d6 KA.