Thanks Cascade. No doubt 2♠ is a good start. My main concern is exaggerating a little about the length and quality of spades may cause problem latter on.
♠ AQT86 ♥ KQJ7 ♦ T5 ♣ K3 ♠ J7 ♥ A84 ♦ A74 ♣ Q8754 3NT is the final contract at most table. The bidding may like this: 1♠-2♣ 2♥-2NT 3NT-pass Is there a rational approach to reach 4♠? Thanks!