Thanks for the information; great thread. I like the convenience of a 10% stock - I find it's easier to tweak the bleach to my taste. Using Ian Grant's suggested 3g Ferricyanide + 3g Pot. Bromide + 1L water yesterday, I found it to be too quick acting. To each their own, of course.
The Defender Varigram toner has always fascinated me - I think this winter I'll spend some time with it, trying to get it to look like Kodak Sepia. Thanks for the link, Frank!