whereagles, on 2014-July-02, 01:31, said:
JTxxxx
xx
AKJx
x
That hand is an obvious pass. Thinking of bidding 2♠ means that you want to show your hand rather than to listen to what partner is saying.
Partner bids a non forcing 2♥. That means that he doesn't like spades (he could have chosen a very non forcing pass) but he is offering a decent heart suit since he thinks that will play better. So, if you refuse his offer, you need to have a reason. JTxxxx is not a reason.
Just picture partner with a typical:
x
KJTxxx
xx
Kxxx
or even
x
KQJxx
xxx
Kxxx
(which is a hand that should pass 1♠)
It is clear that a heart contract will play better than a spade contract.
Rik