Downsizing in a plug boot is rarely needed as most downsize, in regular lasted boots, to get a tight fit around foot and ankle, which many times results in the toes jamming the front of the shell and needing some stretching or grinding whereas, a plug boot is so narrow that downsizing is not necessary to get the snug foot and ankle fit desired. So consequently the toe can have it's room and the other boney prominence can be ground to contour the shell to fit properly. At least that's my story and I am sticking to it. haha.