Sorry, I don't know these skis! But there's sort of an interesting question here and in the thread
@NWSkiGirl started.
https://www.theskidiva.com/forums/index.php?threads/heavy-powder-skis.25362/
It's about whether a lighter ski or heavier ski is better for PNW snow. In these two threads you can see people leaning toward both sides. I'm not sure there is one answer for all people.
I do think it's important to remember that "powder skis" or wider skis in general aren't meant only for skiing super dry deep snow. That's not the reality of what most people are skiing, unless you ski Alta or are in Japan. Maybe what people love on a deep day at Alta wouldn't be the same as what people love on a deep day at Stevens (then again maybe it is), but also remember that the snow in CA and the NE is heavier than what we get (see this water content chart here:
https://bestsnow.net/snoqlnet.htm) so by no means do you have to pick out a special ski for the PNW. I would even take those percentages with a grain of salt; I bet I've had 12-15 "powder" days at Sun Valley and the snow doesn't feel lighter or any different than at Crystal to me.
I ski Crystal and I use 98s (Black Pearls) as my daily driver. I used to use 88s. 90 is definitely not too wide. But it does depend on the ski. I find my 98s very nimble. I have 85s (Head) for firmer groomer days, although I'm not sure I've ever actually skied those here in WA. (I got them in Sun Valley where we go every year and I bring them to ski the hardpack there. ) The caveat I have is that if you ski Snoqualmie regularly, and go no matter the conditions, you are going to deal with the freeze/thaw they get due to the low elevation. A wider ski on frozen slopes isn't great of course.