The logic is that the bov being closer to the tb is better because it will release the pressure sooner. when the throttle plate shuts it causes a pressure build up that passes thru the ic all the way back to the turbo so...
Imo i don't thi k it matters that much and is more a matter space. If you look at the stock setup the recirculation valve is withen inches of the inlet and tgere is some space there.