When your weapon is drawn the game should set your mouse dpi according to armor weight-- 2000 for unarmored, 1200 light armor, 600 medium, and 300 for heavy.
I think charging a sub during early access is a bad idea but I don't know the financial situation at SV, maybe it's necessary for survival. It's definitely going to be mentioned non-stop by naysayers.
Blocking should eat stamina proportional to the attackers strength vs the blockers strength. Someone with 15 STR blocking someone with 125 STR should result in the blocker losing most or all of their stamina.