Ahh..so down to checking the specific manual then?
Despite being a fan of this exercise, I have occasionally wondered about the legality of competion blind circuits etc given the minimum instrument prescription list for VFR flying in Australia. There are probably training dispensations but do they cover intentionally taking off with no visible ASI (and as most SEPs only have 1 ASI, I guess that precludes a RH seat view as well)?
It doesn't keep me awake but the question did again occur to me in the context of the present conversation.