I wear a 9.5 in converse also and I just tried on a w1k in a 9 yesterday and it felt ok. A little loose but I think I could make it work with an insole. They didn't have the 8.5 in stock so I'm waiting for those to come in so I can try them on. I just got a pair of Red Wing Iron Rangers in 8.5 and they are a little snug on the sides but they will stretch with wear. I'm mentioning that because I've heard that w1k fit almost the same as Iron Rangers so I'll probably end up buying the 8.5. I live in Los Angeles so I will wear them with thin black socks most of the time so they should fit fine after they're broken in.
sorry to mention that 9,5 is abit loose, and 9 is a perfect fit,not to loose nor tight, my actual size is 27,5cm from heel to toe,
so anyone here suggest i must take 8 or 8,5? because there is no retailer store for wolverine i my country and i cant do fitting, so i will buy it online.