I agree - I only tone for color shift - just did some prints on Slavich Bromoportrait 80 - a lovely warmtone double-weight baryt fiber paper.

My wife wanted them sepia to match a room decor (heck, I'll do anything to get my wife to hand more of my crud).

I used KRST 1:9. I toned immediately after washing - strong color shift tosepia in aboyt 90 secs - completed teh color I wanted at 1:30.