Some competitive bidding gadgets.

In preparation for Beijing, our bidding knowledge has improved for sure.
I'm posting here about some of them. There are many minor variations/adjustments made by many partnerships, I'm posting the ones SP and I have agreed upon.

Meckwell transfers.

It applies in these situations:
1M -(x) - bid
Yes, only one situation! Lets look in detail in this situation 1S-(X)-bid

• 1NT is transfer to clubs. 5+Cs at least
  
• 2C is transfer to diamonds. 5+Ds at least
  
• 2D is transfer to hearts. 5+Hs at least
  
• 2H is a good 3-card raise. 7-9 points
• 2S is a bad 3 card raise. 4-6 points
• 2NT is a good raise with 4 cards.
  
• 3C, 3D, 3H (all jump shifts and double jump shifts) are fit showing, with 4 card support at least and ability to play at that level.

Some interesting continuations are possible after this convention. Of course the opener can reject the transfer depending on his hand - if he has say a two-suiter or a single suiter. If the 1M bidder completes the transfer into a new suit, return to the M by responder now will be 7-9 points and 3 card support; with 5 cards in the shown suit. Transfer and 3M is same but 10-11 points. This can be treated like a game try bid. This can apply by a passed hand too (Drury of any kind is off on interference) However we cannot play Bergen raises playing fit showing jumps in competition.
Over 1H-(X)-bid, logical changes shall apply, (2S can be used as splinter?) 1S is natural, forcing and tends to show good 5 cards (sitting over the doubler)

There is a variation of this given in WJ2005. In that 2C/D/H are natural, NF. But 1NT is a good raise ( probably giving opener to make game tries) and 2M is a weak raise. Rest are the same as given above.

One additional case where these can be played is when the 1M was over-called naturally and opponent makes a negative double.

This concept can be extended to many other situations. For instance, over opponents 3-level major preempts, say your are playing the common artificial responses, (4m is 5+m and 5+OM and game forcing). They can be applied when partner opens 1C/D (both precision) (not really sure if playing standard it will apply) , making the necessary corrections for playing strength and hcp.

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Cheers
Guthi