I do not agree with 3♣ as 5-9hp in this situation. Even with agreed negative free bid, I would have a solid suit 8-11 hp at the 3rd level. If opps did not bid 2♦, would 3♣ be invitational? I'd like just a little more to bid 4♣; if I get 4♦ cue-bid, 4NT is obviously the choice, and if partner shows all missing keycards, one is obligated to bid 7♣. This situation is for me a little different than the other thread. I would not bid 3♦ in this situation as I see slam as a long shot, and 3NT is not a diserable contract. One may reason to find logic in all bidding-sequences - and whereagles makes a good point with 3♦, but reacing 6♣ is a bit of a stretch. My choice is therefor 5♣ with 3♣ meaning 5-9hp. With 3♣ showin 8-11hp and at least AKxxxx and Q in one of the suit except diamonds, I'd consider 4♣; giving partner a choice of cue-bidding - or simply bid 5♣, expecting to make.