This actually makes the non-uniformity worse, not better -- things priced at an even number of dollars don't factor into the calculation before tax (and there a

This actually makes the non-uniformity worse, not better -- things priced at an even number of dollars don't factor into the calculation before tax (and there are lots of those), but after, change amounts get disproportionately weighted to the amounts of change produced by even numbers of dollars. Argh.