Double:

• Over 4C/D: Takeout
• Over 4H: Optional Takeout
• Over 4S: Penalty

4NT:

• Over 4C/D: RKC [S]
• Over 4H/S: 5-5 minors

Suit Overcall

• (5)6+ card suit
• 16-20 pts
• Responses:
  • O:4NT - RKC [S]
  • R:raise - [N]
  • R:cue bid: 1st round control & slam interest [S]

Cue Bid:

• over 4C/D: 5-5 majors
• over 4H/S: ask for controls in preempt suit
  • 1st round - 7 of unbid major
  • 2nd round - 6 of unbid major
  • no controls - 5NT