I'm coming in late, but this is fun stuff. I worked in dye transfer for many years and ran one of the last standing dye labs in NYC (Tartaro Color).

I've read a lot of your posts, but haven't seen any mention of separation negs. Are you using digital negs or going old school? I know that pan masking and panchromatic lith film haven't been made for years, so if you are pursuing an analog method there are challenges.

Also, in your last post I see you're having trouble rolling prints. The Warren Condit Company (Sandy Hook, CT.) made print rollers with a weighted steel bar over the roller to reduce shimmy. Also, the matrix was anchored to the transfer slab with register pins (I didn't see any mention of this in the posts I've read) which adds additional rolling stability.