Ah, I had forgotten about that spreadsheet (lost all data on a hard drive recently... no backup).

There was a linked thread in there that mentioned the lack of importance of crit after a certain point, and I've definitely noticed (in hindsight) a difference since getting Scylla's gear that my crit rate is lower, and yet, I'm doing a lot more damage with them at relatively the same percentage of occurance (and being 1 crit tier lower).

Thanks Harold