I may have to look into the Calth Blue then. I found a couple posts about making a glaze similar to Guilliman blue using Vallejo Game ink (7-8 parts blue, 1 part red, and 24 parts water) and will be trying that too when those come in this week!
I did over the weekend try a Talassar Blue that was heavily thinned down with water and added some Matt Medium, It gave an effect that was still more desirable than using the nighthaunt gloom.
And that's a good point as well, I have some Matte sprays I like to use as well when i'm all done so I might just stick to just adding water for now for glazing.
Thank you for the suggestion and feedback!