People use the double/redouble thing far too often, almost in a mechanical way. They forget a key purpose in the bidding process, that is, making use of any available spaces to give your parnter true information instead of giving opps' valuable space to find a good contract while leaving your parnters in confusion. If you weak, why not immediately tell your partner "hi, man, I'm weak" by a pass; if you have support, why not support your parnter immediately by raising one, two or even jump to the game? Like this hand in the photo:[hv=pc=n&s=sa53hkdj3cakq8532&w=sqhqjt8765dt9854c&n=sktha43dkq76cjt94&e=sj987642h92da2c76&d=n&v=0&b=1&a=1d2sdppp]399|300| I opened 1D and my partner doubled opps' 2S; I passed for no sure clue about my p's double due to the first-time partnership as in so many cases in a BBO tournament. The result was, 2S-1, 0%[/hv] Of course, my p would call me an idiot. But wait, isn't that a possibility that my p holds all remaining spaces, so that we would kick their asses in a hard way? And, what about I bid 2NT and it turned out that opps run their spaces in an unstoppable way? The real point is that my p didn't think in my shoes and jump to 3NT to avoid any partnership misunderstanding as shown so clearly in the bidding process ... Indeed we can reach a good contract without giving our parnters a hard time to decide how to respond. Thank you all guys for reading and commenting.