I should have been clearer in my post that the full stops help me since in most cases, I find that I need to know how many more (or less) stops are needed to achieve the required burning and dodging. You can certainly run the exposures on half stops etc, or save that for your second strip (Which I sometimes do to get the spot on exposure or compare two halves of the strip at different grades etc).

You can also buy timers that work based on f-stops rather than absolute time. Don't have one, but I can imagine how much simpler my life would be