So to some up what they said about the test here are some quotes:
Mr. Staberg states that that the "modern steels are better than old steels" statement is false do to the variability of the types of steel both then and now. (In and of itself a probably true statement)
Mr. Gemvik Goes on to state that GENERALLY modern steels are better than old steel due to reasons other then those made by Mr. Staberg.
Mr. Staberg then points out that the helm pictured is probably too thin to be accurate.
Mr. Gemvik admits that it does sound a bit on the thin side with a thickness of 1.27mm, but then goes on to say that he has seen metal 2mm thick (which is approximately 157% thicker and would logically fit into Mr. Staberg's ideas of a more correct thickness) be punctured by similar weapons. Which lends more credibility to our side of the discussion. Which is that warhammers, spears, poleaxes, etc. CAN and DID pierce plate mail with frequency enough to not be "poetic license".
There is also the plates that I dug up that show period arms piercing period armor, which should also not be set aside.
Good luck with your endeavors, and I hope your novel works out for you.
