What's next bid? How much slam potential does this hand has?
If 5♦/5♥ shows 1st round control and 5♠ asks for ♣ control what's your choice(Of course you can choose neither of them)?
If you don't agree the meaning I assign on 5♦/♥/♠, what do you think they should be?
If you agree, then how do you bid with ♠JTx ♥Kxx ♦KQxx ♣xxx under the same auction?
Does this 4♠ shows less or about equal strength than
?

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