Phil, on 2012-December-19, 09:49, said:
The idea is to use an intermediate call by opener after responder's 2M to signal a minimum.
For instance, after
1♦ - 1♠
2♥ - 2♠
use 2N to say, "I have a minimum reverse".
For instance, after
1♦ - 1♠
2♥ - 2♠
use 2N to say, "I have a minimum reverse".
I don't know anyone who plays that but it's probably a decent idea, although not being able to stop in 2NT could be pretty bad since you haven't found a fit yet. You might as well just play transfers instead if you are going to play that though. But I mean if you are really going for the optimal system, every reverse auction should probably be different since they all have different suits shown and available below other suits.