Help
I'd like feedback on this one :-)
Assume you play 2/1 with conventional 4 card raises of a major.
The scheme for the conventional 4 card raise can be either Bergen + J2NT, or Jacoby+ and Fitshowing raises.
3 card raises are shown as follows:
a) very weak hand (say 0-7 hcp, or, better, more than 9 losers)
bid 1NT forcing then signoff
constructive raise (7/8-9/10 hcp, about 9 losers)Immediate single raise
c) limit raise
1NT forcing then raise to 3
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The above applies for the uncontested auction.
In a contested auction, "standard 2/1" assumes that the single raise is not constructive anymore but can be as low as 6 hcp (even a good 5 occasionally).
IF INTERFERENCE OCCUR AT THE ONE_LEVEL (up to 1 spades-inclusive), we play that responder uses transfers (1NT shows clubs, 2 clubs diamonds etc), and that the transfer into opener's major shows a constructive raise (8-9 hcp- 9 losers).
The direct raise is the weak raise.
So far, this has worked quite reasonably (also due to the fact that opener is limited to 15 hcp= we play Precision).
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THE QUESTION
The problem arises when opps interefere with 2clubs or higher.
Do you have a scheme or thoughts on whether it is possible (or recommendable) to differentiate constructive and weak raise ?
E.g.:
a. don't bother differentiate, just raise whenever you have support
b. don't bother raising with the weak hand, you save the raise for your constructie bidding
c. don't bother raising with the conbstructive hand, save the raise for destructive bidding; find another bid if you are constructive;
d. differentiate the 2 bids as follows:....*HOW*...?
