Do you not have a spectrophotometer? At least an i1pro (version 1 or 2)? With that level of printing hardware it would be well worth it to be able to make your own profiles, and you could definitely do that with Wasatch, even if you have to measure by hand if you don't have something like a Barbieri LFP or an i1io table. In my experience with dye-sub on chromaluxe I had a ton of variance with weather and I was relinearizing every day, sometimes multiple times a day.