I notice that on the RF boards I have owned that little delams occur from the slightest bump. When I say delam I mean there is no visible damage to the glass, it just has come away from the bamboo in the little spot where it was bumped. You can just see it as a cloudy discolourment. It usually happens around the rails where the black line is on the edge of the bamboo, normally from a light bump with a knee or elbow or leggie.
Id imagine that to fix little delams like this would be quite hard and involve removing glass that is not at all damaged. Does any one bother fixing these?