I did a test today checking my fixer exposing paper to light then putting it into the fixer in 5 sec steps, washed, then put it into toner to see the step where no more colour change is to determine half the fixing time. The fixer according to this seems fine.
My consideration is that you can take sodium sulfite after the toning to stop the toning to prevent possible staining in the wash. I have never done this but may do so.