thedoclc said:
You clearly seem to have a lot of knowledge about the rapier and its application, how it works, the innovation of the Capo Fero lunge, the disengage, the sheer fucking speed of the thing. Not too much I can add. Armour was not entirely absent when it was used. You still had the buckler and sword combination holding out in England for a while, light brigandine had been worn by nobles concerned for their safery for some time (goes under the puffy outfit) and still lasts into the Renaissance. Pikemen and equipping them with some armour lasted for a while and depends on time and place. Go east and the Ottomans and Arabs still used lamellar, leather, leather-scale for a damn long time. Brigands and highwayman would equip themselves with whatever they could get away with and afford.
The rapier is not a heavy armour puncturer (just go round and find the opening), you would want a pick or a polearm for something like that (bec de corbin perhaps, or spetum or awlpike). Then again the tuck or estoc is a two-handed rapier designed to pierce armour
http://www.myarmoury.com/feature_euroedge.html
I find the Spanish and German basket-hilt rapier designs the most pleasing, combining buckler and sword together, as the epee in fencing illustrates. Course I also find some of the European one-handed falchions quite nice and look to be useful and used more amongst Europeans then we might think, but then again, the Swiss also made two-handed sabres which look a lot like the lauded katana).
http://en.wikipedia.org/wiki/Falchion
http://bjorn.foxtail.nu/h_conyers_eng.htm
http://www.myarmoury.com/review_lut_10006.html
Did you know, despite a lot of criticism, some cavalry units actually went for rapiers over sabres or cavalry swords? (Cohen 2002). Some generals said it would never work and would break, others insisted it was just fine in the field. Suppose it could be used like a swift light lance in a way.