Well I've nearly got it down. Most of it is finished, it's just a matter of tweaking a few bugs. I think placement of certain logic gates is interfering with my completion. I will submit a schematic shortly, if anyone wants to take a crack at it. It is indeed much more complex than I originally anticipated. I think I may add a counter to keep track of levels in ascending order, or I may just need to add a few RS NOR latches and add a few more ticks to some repeaters. I think the problem with a project like this is, there are so many possible solutions it's easy to get lost. I often spend so much time laying out a circuit, I tend to forget the purpose once I've finished. >.<
