In third seat non-vul can open with 5 cards
RONF - Raise once non-forcing
New Suit is Forcing one round
2NT - OGUST responses
Strong 4th Seat Opening 18+ HCP
Lebensohl responses are on
- Relay to 3 ♥ is invitational (4-5 HCP)
- Direct 3 ♥ bid is GF
- Direct 4 ♥ is distributional hand with no slam interest unless partner has additional values