If anyone has experience with these toners, I'd love a few pointers.

Specifically I'm wondering if it's better to print lighter or darker with these toners? More contrast or less? Also, is the life of these toners after mixing comparable to sepia?

I'm also curious, as I've never seen these toners before, what colors to expect, say on Ilford warmtone fiber and bergger fiber papers?

Thanks in advance for anything you might be able to tell me.

- CJ