Excellent discussion, and as Lee has noted, many terms and long held 'chestnuts' concerning the spectrum of arms have been firmly in place or 'written in Stone'
. However, as with most aspects of history and all its ancillary studies, it is well to learn all we can on origins and development of not just the forms, but their descriptive terms' etymology. Stone himself knew the frailty of his chosen subject matter, and that his work would serve as the benchmark it has become, and encouraged research to continue,
The very nature of these aspects are often of course nuanced, subtle and many have clearly gone unnoticed or unattended at large, which is exactly why these perspectives by Ariel and Dmitry are so well placed.