lamford, on 2012-January-26, 18:37, said:
The problem is that partner may well be 2-3 in your suits; after the takeout double, which tends to have the three other suits, this is more likely. The 1NT bidder has defined his hand more narrowly than in an uncontested auction, so will be reluctant to raise to the 3-level, and the 5-2 fit is unattractive after the takeout double, so false preference is dangerous.
The takeout double tells us that both suits are more likely than normal to break badly. Why is it more dangerous to play in a 5-2 fit that is breaking badly but onside than a 4-3 fit that is breaking badly and offside?
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If all non-forcing 2m bids and all non-game-forcing invitational+ hands have to bid 2m and hope to get a response, then this represents too wide a range.
We seem to have moved on from the original question. I thought your objective was to find out what is normal, rather than to analyse and improve upon normal methods?
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Not to mention the problems that occur when your LHO jumps in hearts and your hand is poorly defined.
It's not clear to me that splitting responder's range into 0-b7, g7-10, 11+ represents better definition than, say, 0-b6, g6-9, 10+.
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g7-b10 would seem to be the range suggested by the poll
I don't think you can conclude that. The hands you chose to ask us about are all quite poor, with their scattered values, high proportion of minor honours, and empty suits. If, for example, the six count had been Jx xxx Q10xx K9xx it might well have got some more votes.