Buz's refutation of all radiometric dating methods

Problem is, buz, you shouldn't expect K-Ar ages from Mount Saint Helens, or Surtsey or other recent eruptions to be accurate. That was understood for many many years before the Mount Saint Helens samples were taken. Using K-Ar on such samples was like trying to measure the size of a shrew using a surveyors' chain.In other words, the samples were not scientifically dated at all, because the choice of method was not appropriate.

I don't see any point in flogging a simile. The key issue remains that the method of measurement was inappropriate.When I was learning practical science the very first step of every exercise was to propose a methodology and defend the proposed method in terms of its appropriateness to the issue at hand.Why would you think K-Ar dating appropriate to a recently formed igneous sample?