We are not sure about the lack of reciprocity between UA and AC. As I said, they have eliminated the restriction for accessing UA Red Carpet Clubs for North American flights for AC Elite and SuperElite and according to the Star Alliance web site, Maple Leaf Club members should get the same benefit, i.e. access any time flying a star alliance airline to UA Red Carpet Clubs (and to all Star Alliance "gold" lounges of course).
The real world experience was UA was letting AC Elite flying only in NA use RCC even when restrictions were in place for AC Elite members
[This message has been edited by BlondeBomber (edited 04-02-99).]