I have a first results on 2010 data! It's just 1000 generations of the nearest neighbor solver, so I'm sure I'll do better soon. So far I've run it for NJ and VA. Had to toss the super-fine face+edges based linking and fall back to common-line-segment linking based on the tabblock tiger maps. The faces seem to have lots of 'blocks' that don't exist in the redistricting data. Probably extra detail on water and unpopulated areas.