Every one seems to forget the biggest difference in the use of got/gotten -- to USrs, it's "gaht"; to others it's "gawtt" (my best approximation of the Brit short 'o' sound). And of course, the great example of 'I've got', "I've got a little list" (in which 'got' may have been chosen for musical purposes). If it was good enough for G&S, it ought to be good enough for an AWADer.