I've been davening Mincha lately in a minyan that does a "hoiche (hohche, heicha, whatever) kedusha (Nussach Ashkenaz). I'm wondering, though, if the Sh"Tz should be saying "Atah Kadosh" or "L'dor Vador" after kedusha -- is the switch related to Chazaras HaSha"Tz (which isn't happening) or to kedusha? --Chesky