My point from my previous post was that after so many concussions myself (and no USAR it wasn't a car, just an a*&^le with a lump of 4x2) and experiencing first hand the varying degrees of memory loss etc. the medical opinion I received has been widely varied.
The guidelines are vague to my mind, and hence so many incidents seem to the lay person to get swept aside and the player cleared after what appears an inordinately short time. Some of that is the perception of the lay people and their previous experience of the strict time outs system.
However I am not so much worried about the individual incidents as much as the repeated traumas. There is a slowly building body of evidence that repeated traumas lead to long term damage, to the point where it would be very hard for anybody to dispute. What I would like to see however is some serious research done into susceptibility of a person to that damage and after what degree and number of trauma incidents. From a personal stand point again I have suffered few long term effects that I can ascertain from my repeated incidents, though I suppose my post mortem may prove differently when that time comes, so I wonder if I have some sort of resistance to the long term damage, or at least the symptoms of that damage. If we could better assess an individual's risk of not only long term damage, but better identify the symptoms of such damage before further traumas the risks could be lowered for the individuals.
Given the demographic of Rugby in Australia I am sure that we should be able to find some people in the right course to examine this issue, and Rugby provides a good base of incident which could start the examination.