I have talked to the powers that be and will admit that the info I gave is a little misleading. Apparently interviewing will cease at the end of March for planned courses over the summer. I misinterpreted the phrase of 'recruitment stops after the march session as meaning that once the march course was filled that was it. But as I said, it appears that they will be interviewing until the end of march and then that is it.
Hope that is a bit clearer (as mud).