mike777, on 2025-November-20, 17:23, said:
2NT is probably the more modern expert style
Old fashion style
3h= roughly 8-11 support
4H= roughly 12-13 support
3S = roughly 14+ support
Without add. talk, I would assumed, that
4H showes a hand, that think 4H will have some play, 4+ trump support, maximal inv. values.
It would also include hands, that would have made a preemptive 4H raise without interference.
3S showes a fit, sets up a forcing pass seq.
3H showes all the other hands, i.e. simple raises from 6/7 ... inv. hands with only 3 card
support.
The introduction of an artificial 2NT or the usage of xfer responses tries to provide you two
different routes to 3H, to enable opener to better judge, if the partnership should try 4H
with the intention to make.
With kind regards
Marlowe