Thanks for this insight! I never would have seen it had you not told me. (I'm an engineering guy and switching between time-per-unit and units-per-time is so a

Thanks for this insight! I never would have seen it had you not told me. (I'm an engineering guy and switching between time-per-unit and units-per-time is so automatic for me that I didn't realize it wasn't automatic for everybody.) I've updated the story to explain the calculation the first time it happens. Thanks again!