The area is described as being 'rough' and implies the rough in the PA is indistinguishable from that outside. If the ball is not found it is 50/50 on which side of the margin it is. Far short of the 95% test. The ball is lost - S&D - EosWhen he gets to the probable area he must have KVC it is in the PA in order to take relief. If he hasn't got KVC and can't find his ball he must take S&D.