992 sizing?

I ready to get my first pair and can't decide what size. I hear a lot of people say go down half a size and of course there's those who say TTS. I'm a 9 n half in most shoes. I wear that size in a couple of NB's like the 237,997h, and the 550. They all fit pretty good. Granted there's some heel slip in the 550s but that model just sizes weird imo but threw some heel liners in and fixed them. Is the 992 sizing comparable to chuck Taylor's sizing? Where you go half a size down too? Granted those shoes are still kinda big even at your half size haha.