I am probably suggesting something I haven't spent enough time examining the code, but before that this seems reasonable . I was thinking that the requirement to name the campaign CLOSER, INBND, or BLEND (or _C _I or _B ).
I was thinking that the blend option could check and see if the campaign has inbound groups associated, and if so THEN setup blended, otherwise just login. Since the screens flash all the hidden pages during sign in it seems like this wouldn't add much if any time to a sign in. But then I haven't looked into the code yet either.