In fact I think Quantum Leap finished in May 93, which is after DS9's first season. Surely he's free to make a special horseriding cameo? Although perhaps we should knock a star off TheGodBen if he uses jokes from previous reviews?
I already mentioned it my reply, but, for emphasis, Kai Winn was a brilliant enemy. I just thought I'd throw out the stray thought I had that I can understand why the writers would want to team up her and Dukat in the final arc. I mean we know how it all ended quite poorly, but I can see their thought process. Or at least I can if we pretend that I'm a professional writer for a minute.
I could pass as a professional TV watcher, perhaps.