I did get an ask about why I went with a 4th century Roman Ridge helmet instead of an actual 6th century helmet like the Shorwell helmet. The main reason is that there's a pretty clear line between Roman Ridge helmets and later early medieval helmets like the Wollaston or later Coppergate.

I suppose I could have been more creative with the helmet design, maybe taken the skull construction from the Shorwell or Wollaston, or made the nose guard longer. But I think whatever a hypothetical Arthur would have worn would probably have cheek guards and a nasal, and not just an iron salad bowl