The Lafai "no try" is a try every day of the week in every year I've been watching league, all 36 of those years. I won't comment on Steve Clarke for the moment as I could write war and peace on that poor individual. The key point I want to make here is that video referees don't seem to understand the concept of "conclusive evidence". They are taking it as a means to apply discretion, which is subject to bias - bias can be conscious (direct, known or undisguised) or it can be unconscious (ie the person has a predetermined behaviour and doesn't know they are biased). The rule is simply this - there needs to be clear evidence to overturn an on-field decision. In Lafai's case, that would of required clear separation from hand and ball. In no way, in the view of any reasonable person watching or other interested person did this occur. Therefore the decision was incorrect. Whether it cost Canterbury the game we will never know, but it certainly cost them momentum. As we know, momentum is massive in rugby league.