In fairness Pete, we can only call things as we see them at any given moment in time - and in two cases verd has appeared on a slabbed coin, when it was not (apparently) previously there.
So I think we are entitled to raise questions as to the degree of care shown in the handling process of slabbing, especially given the other instances of carelessness objectively highlighted by Sword. For example, the tiny piece of plastic pictured lodged in the slab cannot, by definition, be the fault of anyone but the slabbing company.
Obviously there is no hard evidence to confirm or deny fault either way when it comes to the appearance of verd, post slabbing, but naturally a certain degree of suspicion pertaining to the slabbing process will be aroused, and it's perfectly proper that such suspicions are given an airing, if only to alert other members as to the possibilities.