Thank you everyone
I see I have made a good choice and observation.
Just wish it was more readily available here in British Columbia.

TONING: I use ILFORD Selenium toner and boy does it do a beautiful job ... depending upon what it is you want it to do that is.
One of the things I have come to be excited about is toning my prints, whether for optimum permanence and D-Max or these two things plus a colour shift; I don't consider my work complete without toning.