i think kva's are 1 size smaller now. I used to fit into an older model 43 but last summer's 43 I couldn't even get my foot in all the way. im guessing the construction of the back zipper is different each season model. I would say they are now closer to gat size.
That reminds me, how long do you all typically keep your baller sneakes? I have some MMMs that are a couple years old now and definitely show it. I use them as beaters around the house.