I like how people bid sometimes like distribution can't trump the snot out of hcp. Throw in position and start an eternal triangle like rock, paper, scissors.
17 total trumps and 16 tricks.
If the auction ends in spades, and w starts with a top heart and then plays ♣A and a club, the defense gets 1 less trick.
Assume your favorite signalling.
Benefits include:
Plus... it's free!