Opening 1M, we show support and / or GF this way (mainly taken from Jassem's WJ 2005):
- 2♣ = GF, maybe only 4 ♣s, 3 crd M support possible
- 2♦ = GF with ♦s or 6 ♦s 9-11 --> Rebid in ♦. 3 crd M support possible
- 2♥/♠ = 6-9. (9 with 3 M support, otherwise 3♣) --> Opener can bid Romex
- 3♥/♠ = preemptive (4 - 8), 4 M support
- 2♠ (after 1♥) / 3♦ = 16+, SI, at least 2 of 3 top honors
- 2NT = limit: 10 or 11 >> 3 trumps, (continuation: short suit trials) OR very strong
- 2NT and later 4NT = RKCB 1430
- 3♣ = 9-11 >> 4 trumps --> 3♦: "inviting"
- 3♠ (or 3NT after 1♠) = unknown mini-splinter, 10-12 --> 3NT (4♣ after 1♠) asks
- 3NT/4♣/♦ (4♥ after 1♠)= splinter, 13-16
- 4M = preemptive
I find it hard to bid GF with support, especially with 4 crd support.
Now we use 2NT or 3♣ and then bid on with a stronger hand, but I don't feel really good with that. Where is the hole?
We discussed to switch the meanings of 2NT and 3♣ using 3♦ as a bid to show a non-minimum hand, but I am not sure if that is a good idea.
We don't want to change the whole bidding structure here, but suggestions are really appreciated!!
Thx!

Caren
OT: Do you splinter with a K or A?