Blackout Convention - Variation

Variation

An alternate scheme:

1. After a reverse, the cheaper of fourth suit and 2NT is forcing, showing a relatively weak hand. Opener bids the next bid upwards unless he has game values.
2. If a rebid of responder's suit would be cheaper than fourth suit then it is non-forcing.
3. Other bids are natural and game forcing.
4. Responder's 3NT rebid after bidding the cheaper of fourth suit and 2NT is a mild non-forcing slam try in opener's first suit.