A great practice piece, for sure.
But how much does it weigh?!?
Does a ULer only buy groceries in quantities just below $20, $40, etc, so as to get no small bills and leave only a few cents of change behind? And a SULer, of course does that in increments of $100.
It was striking that over 28 miles in the Grand Canyon 10 days ago, the $20 bill I brought weighed much, much less than the lemonades, powerbars, etc, that it bought at Phantom Ranch.