Discrimination!
Since not using the fast-track at CPH is really a big disadvantage (walking much further and standing in line for long) I really feel discriminated as *A gold (not SK). TK in IST also is very strict (selfish?) towards alliance partner's flights, but at least on their own metal doesn't make a difference between TK or *A status.
But the great lounge in CPH makes up for a lot, despite it's often inconvenient location. Hope you are lucky and they have smoked salmon (which seems to be offered less frequently than before).