is the only reason I'm posting this question.Getting right to it:
Matchpoints. EW are playing Precision with 14-16 1N, but in 2/1, of course, the opening could've been whichever 1m suits your fancy--I imagine most would open 1♣. EW can find a 4-4 ♠ fit via XYZish Stuff if responder is invitational+.
As East, do you rebid 1♠:
Benefits include:
Plus... it's free!