r/trichromes

I wanted to get started with traditional trichrome photography. I quickly found that pretty much all Tiffen resellers are US-based. Tiffen's website lists many EU resellers but pretty much all I've looked at seem to have no Tiffen products anymore (Tiffen not mentioned as a partner either). The few that did have it are mostly out of stock, or have maybe one or two filters in some random size. Even though Tiffen is a German manufacturer, I could not find the color cut filters anywhere Germany either. So what's going on here? Is Tiffen in trouble financially? Any tips where to buy them? (I'm trying to avoid ordering from US/UK because it will get much more expensive due to shipping and taxes).

I've been reading here forever and will soon try IR trichromes. Can't seem to find a green filter in my country, and don't want to wait for delivery. I have Hoya 72r and found an average blue filter. I've also encountered someone using unfiltered shot for the green channel. Does someone have a direct comparison between IR/G/B and IR/Unfiltered/B? Would be very helpful :)