i'm glad someone else asked this question because i've done a fair amount of online research (including the sizing guides on this forum and elsewhere) and can't find anything on the plaza last to try on in person.
i have experience with the trubalance, modified, barrie, and leydon lasts. i'm 9.5 in everything but the leydon, where i find a 10 works best. however, my leydon-lasted shoes are unlined suede chukkas, so i'm not sure if they're a great gauge of the size of the last. does anyone have any advice on whether to stick with 9.5 or move up to 10?
In my experience, if you are 9.5 in Barrie/Trubalance then you'd be 10 in Plaza.