[straube]

After such an auction as

2C-strong
2H-double negative
3S-forcing, sets suit

what are we looking for here? I think most who play a 2H DN use it to deny 2 queens or a king. Are we looking for partner to cue a queen now? I would think we would want to know shape information, especially trump support and ruffing ability. Interested if anyone has thought this through.

I'm actually more interested in applying this to IMprecision.

1C-strong
1D-0-4 or 9+ (approximately)
1S-natural, forcing
2C-0-4, club tolerance
3S-sets trump, f

Assuming I have this right, responder could have as much as an ace so cue bidding would make a lot more sense here. However, I'm still thinking trump support and distribution in general are important. Maybe

no fit, bad
no fit, good
fit, bad
fit, good

Must be something better than that.

[PrecisionL]

1♣ - 1♦ - 1M (4+ forcing) - ?

For many years I have used the Johnson-Berkowitz-Cohen scheme:

https://web.archive....lub/bc_jb1c.txt

Which focuses on major suit fits and strength:

1♠/1NT = dbl negative w/wo 4+♠ 0-4 hcp (no ace)
2♣ = 5-7 hcp and 0-2 cd support for the major
2♦ = 5-7 and exactly 3-cd support for the major
2M = 4-cd support 3-5 hcp
2oM = 5-cds 5-7
3Y = Mini-Splinter or FIt-Jump (your choice)

[straube]

That's a good scheme. Using that, how would you continue after 1C-1D, 1S-1N, 3S? assuming that 3S is forcing and sets trump.

[PrecisionL]

straube, on 2019-June-10, 08:37, said:

That's a good scheme. Using that, how would you continue after 1C-1D, 1S-1N, 3S? assuming that 3S is forcing and sets trump.

i have used various schemes after responder shows a dbl negative to 1M.

A jump (after a dbl negative) sets trumps and asks for cue bidding: Responder bids 3NT with an outside K, shows an outside A or raises trump with neither. One may want to include shortage in the responses ...

1♣ - 1♦ - 2M is used to ask for support when the suit is not semi-solid or better (updated Precision Support Ask):

1st step = 0-1 cds,

2nd step = exactly 2-cd support,

3rd step = 3+ cd support and 0-1 Control,

4th step = 3+ cd support and 2 controls,

5th step and up: zoom to controls

[straube]

Yeah, I was thinking almost precisely that same scheme, but using QPs

[PrecisionL]

straube, on 2019-June-10, 13:49, said:

Yeah, I was thinking almost precisely that same scheme, but using QPs

I haven't used QPs in some time, I wonder if QPs would be better if opener is balanced? Log ago in Houston, we played Spiral Scan and that covered Qs occasionally if the bidding went on long enough.