mikeh, on Jul 11 2006, 12:20 PM, said:
Ben, in most 2/1 methods, the 2♠ is not a reverse... it shows no values beyond that required for a game force... it merely patterns out.
While I have long ago given up on 1H-2m-2S doing anything but patterning out, I have found the following auction to be problematic expansion of that "concession"...
1H - 2m
2H - 2S
if 2S does not show extra values. The reason is that opener's 2H just shows an opening bid, not an extra card in hearts, and can be quite a lot extra or dead minimum. One thing for sure, is opener lacks 4S (see the first sentence). This goes along with the modern theory that in a GF situation use fast arrival, bid good hands slow and bad hands fast. Thus, as you point out the general rule is that reverse just show shape, not promise extra values.
But this one is problematic. If you think spades are now out of the picture (parnter didn't bid 2S to show 4 -- of course 4-3 fit might be best on some hands), why bid them? Lets look at some auctions...
1H-2m
2H-2S
any-3H, how many in the other minor? Is 3H real support? Did responder pattern out to show a singleton in other minor and 3 card support? Would 3 card support start earlier? Which is stronger, 1H-2m-2H-3H or the above auction.
The hand shown here, suggest 2S followed by heart support fails to show distribution. But just a lost way. You have an auction where openers 3m raise (over 2S) probably denies real support, opener 3H rebid is not showing real support and oddly contains a stopper in the unbid suit.
So for these hands, I have (at least in my own mind) divided the 2S bid into showing something extra with 46 distribution. Otherwise I start with 1S. This has, for me solved a number of problem. The first is when I do reverse, it clues the 1H opener in on the extra values. This eases the auction at a time when opener might be sitting on undisclosed extra values. Second, it demystifies the subsequence delayed raise. It is always shape showing. Third, wiht hand like this (modest GF values, 5C, 4S), it allows me to respond 1S and partner will make a more descriptive rebid than the generic 2H (tell me more) bid I got here.
Finally, it allows me to show real club values when I bid like this rather than a five card suit to the 8 or ten. So while the general dogma is what you espouse, I think in this case, 2S has to show better shape (5431, 6421) or better values than this hand has. Otherwise start with a 1S response. This frees up the 3H/3D bid over partner riase or 2NT to show the 5431 hands.