Understanding D&D-esque Initiative/Combat

After getting my head wrapped around AD&D 1st Edition's combat system, I've gone back and re-read Castles & Crusades and Swords & Wizardry's initiative and combat systems. In the case of S&W,  all the presented options. In the past, I glossed over those sections with the thought, "Yeah, yeah. I know how to do this." Turns out that I missed some things.

Did you know that in Castles & Crusades that, in the first round of combat, longer weapons/larger creatures get to act first in the the first combat round even if they didn't win initiative?

Did you know that combat round segments are presented as an option in Swords & Wizardry Complete?

I should have known.

I've become a keener reader.