How effective was Lorica Segmentata?

[Benjamin Abbott]

Williams has already tested one variety of mail. It was a 15th century voider and a lot lighter than Roman mail.

How light was it and how heavy was Roman mail? I don't see any weight for the mail in Williams's book. The 26-layer quilted jack involved in the test was fairly heavy. Is there any evidence Romans wore such thick garments beneath their mail?

Why do you think they developed the estoc? It was a sword without an edge - just a long spike - and even then they needed two hands to get the job done.

My understanding is that the estoc was first and foremost a cavalry weapon and therefore typically used in one hand. Quijada de Reayo did instruct targeting the visor, belly, and armpits with it, so that suggests it was expected to pierce mail.