Not to derail the thread, but I decided to make (what used to be) Kuma-Koban to Centum because I really wanted to split the labiovelars and decided it was too unrealistic to be as much of a Centum-Satem hybrid as it was - also, I decided I didn't really like the way RUKI affected the language.

So I decided it would be Centum, but later experience secondary palatalization of the plain velars in a somewhat Satem-esque manner. I'll start a thread, eventually.