Problem with collision is just because you see a collision, doesn't automatically mean the other guy also sees a collision.
You ->

->

Other Guy->

->

If you took damage from a collision it mean
your computer saw
you collide. The other guys computer is also doing the same thing. If he flies away with no damage, it means he avoided what he saw on his screen (which is not the same as what you saw on your screen).
Back in the good ole days of free H2H, frank3 used to run 4vs4 engagement rooms. We'd all fly off in formations (zekes vs wildcats, 190s vs P47s, etc etc). Icons off, we'd engage and occasionally have some friendly fire incidents (KS was always off). Was all good fun.

On one such run I remember us talking a great deal about friendly collisions and the chaos it'd cause if he turned them on. At the time I saw myself flying at 200yards off his left wing. When I asked he said he saw me at 800yards off his wing. So what I see and what you see are more often than not, not the same thing.
