How smart! So if we play the 4NT opening as a balanced 4-6 hand that's correct as long as partner plays the same? Wow! I meant to ask whether it is a good and sensible approach that'll lead to good results. After 1♦-4♣, for example, opener can only sign-off in 4♦ or 4NT. The idea of splinters over a minor suit opening was to get to a slam, not to play a game (usually). So what is standard? What's better? By the way, I've never had a splinter hand over a minor suit opening...