Claus - you've gotten the "green light" answer to do this. I'd suggest the one time NOT to do this is if the other station is clearly "running" stations quickly through a pileup, or otherwise very rapidly with no time in between. I *think* most of the contest participants will still accommodate you, but understand what you're doing in that case: You're taking the time of maybe 2 or 3 more contacts that they could make in their contest, in order to make 1 contact for your contest. And those 2 or 3 other people might go away - forever - if they don't work that station right away. So the point is, limit doing this to a time/place where you won't be potentially costing the other station in their effort. An easy way to tell when it is OK is when you hear them CQ a few times in a row with no responses. This will generally be later in the contest, or at times when most others in your area are asleep. So I'd suggest that this is an OK strategy but use it sparingly and only in certain situations.