The funny thing is that most computers wouldn't send you straight up if you're nearing deco limits... They send you shallower... But as you say... Computer says up that means up all the way.
Well, actually, if you are still within NDL, the computer doesn't tell you to do anything, either up or shallower. It just says how much time is left at that depth before NDL.
It is the training and mindset of the diver that is the problem; understanding that as you get shallower you get more time before you hit your NDL seems not to be commonly understood.
I appreciate this thread; it gives me a new perspective to address in my classes.