All stuns should use the stamina system

[Flaborized]

Sabers actually do use the stamina system, they just do enough to instantly knock you down by default. You can actually avoid the stun by eating a salad or working out or having cyber lungs or whatever. You could argue that it should be lowered a bit though, since it is a bit much and they're kind of boring.

A bunch of things don't use the stamina system because they don't make sense to. IE: vampire eyeflashes, slipping, stuff like that. The issue here is specifically how much stamina these specific weapons do, not that they don't use the system.