Strong Double
 
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  Over 1 or 2-level Suit Bid
  
  - 5+ card suit, 17+ pts
  
 - balanced hand, 19+ HCPs
  
  
  Sequences:   unbalanced
  
  - OC:double then bids new suit - 17-21 pts
  
 - OC:double then jump raises - 4+ card support, 17-21 pts
  
 - OC:double then cue bids - 22+ pts
  
  
  Sequences:   balanced
  
  - OC:double then bids NT - 19-21 HCPs
  
 - OC:double then jump bid NT - 22+ HCPs
  
  
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