1) No 5+card major
      • When holding a 5+card major, open that 5+card major instead of NT.
      • This practice clarifies the nature of the NT opening hand, and makes it easier to identify an 8+card fit in a major suit.
      • SAYC allows a NT opening with a 5-card major, but I suggest not opening a NT when holding a 5+card major.

2) Must be Balanced
• no voids, no singletons, and 1 or 0 doubleton
• distributions of balanced hands are described by the general notation:
       4-3-3-3
       4-4-3-2
       5-3-3-2 (major suit cannot be 5-cards)

3) Specific Point Count Ranges
Each No Trump opening bid must be in one of three specific honor card point ranges
   • 15 to 17 HCPs -  1 NT 
   • 20 to 21 HCPs -  2 NT  (Strong Opening)
   • 25 to 27 HCPs -  3 NT  (Very Strong Opening)