Split triangulation differently to produce more regular triangles

I'm trying to do some transitions on the topojson/world-atlas 110m map and finding that some of the more complicated geographies break a lot of the time when calling flubber.combine.

I've got a reproducible block up here [gist].

If you add e.g. the United States back in (by no longer filtering out id=840 in line 46) it'll break, saying Uncaught RangeError: Can't collapse topology into 10 pieces.. Changing maxSegmentLength can make things better or worse, causing more or fewer countries to break (but I've yet to find a value that works for all of them).

Also, thanks for the awesome library! I've been eagerly watching your bl.ocks for a while and wanting to give these transitions a try, and this makes it so easy to do.