One thing: Don't forget that the OCP system specifies
Transfer Lebensohl over Doubles of their weak 2's (whether the doubler is 2nd-in-hand or protecting). Now the bidding would start:
(2
) - No - (No) - X
(No) - 3
- ??
If West doesn't come in with 3
, North will bid 3
and now his
King is protected. If West does come in with 3
you're no worse off if North passes or bids 3
.