On the subject of escapes from 1NT X, I really must advocate that pass should be to play. With a not very exciting 5 or 6 count, being forced to run is a poor idea, but having to decide between that or raising the blue flag, is not a decision I want to take. I play that XX = a 5 card suit somewhere 2C = clubs and a higher suit 2D = diamonds and a higher suit 2H = majors 2S = spades and this has worked well for me.