The bleach just gets slower Catherine. But if you start out with v dilute bleach don't work it too hard. You may find that redeveloping in the toner becomes poor. I suspect the bromide (the bit needed for redevelopment) runs out before the ferri component (the bleaching bit) stops working, - just my theory though.
Originally Posted by fluffy_penguins
Yes, you can bleach selectively. The toner then only tones the areas bleached.