Leaderboard

If W has ♦Qx, he can discard Q♦ to try to avoid the endplay, but it doesn't help. After 1 spade, 2 diamonds, 6 hearts and a club with the lead in dummy W can have only 3 of ♠Ax, ♣Ax, provided you read the position correctly, and exit to whichever ace he blanked, you're home. It's not so clear if he started with 3 diamonds.

If you choose to duck a club are you doing it because it makes it more likely that you "make your contract" or are you doing it because it is the percentage play to maximize your tricks? If the former then that is again a horrendous thought process. If you are in 1N or 2N your thought process should be the same on this hand as if you are in 3N. Despite that, I did not say it is never wrong to safety play at MP, I said it is just almost always wrong and anyone who is considering doing it on this hand would be far better served to just never safety play. So if you find a hand where it is right to actually make a safety play in MP as opposed to your actual example, it still does not refute that. FWIW IMO the most common time to safety play in MP is when you are in an extremely good situation that others dont rate to be in (like they have dropped a trick or 2 already that no one would, or you bid a slam with 15 HCP or something). I can't recall making a safety play in a normal contract. For example if your example hand had dummy with AKQxxx of clubs, ducking a club would be normal in imps since while it doesnt maximize your trick expectancy, it maximizes your chance to make your contract, but in MP it would be ridiculous.

If you would even consider safety playing on this hand, I would recommend a simple rule, never safety play at MP. That rule is probably wrong once every few years (depending on how much you play), so it won't be too far from wrong, and will prevent you from even thinking about ever making such a serious error as safety playing on this hand!