Please explain this from another forum. From the wheel size it sounds like two 100% (19,3,4,6)=30 wheels back to back with an offset so you're not playing the same combinations twice. If you get six numbers right you should have twelve 3# hits (guaranteed) or better. You should drop the place holder number combinations into CoverMaster and see how good the coverage really is.
I know nothing about using CoverMaster. Wish there was a help file.