yeah so basically all of this is inconclusive.
here's another study that is more conclusive:
Harvard Study: Smoking Weed Improves Brain Functions
Cognitive function goes better with pot.
http://www.thekindland.com/wellness/harvard-study-smoking-weed-improves-brain-functions-2330
I felt the after effects when I was on the road with my young date after a concert. I was driving on Queens Park Circle and noticed I was a little too close to the next car around the bend, and noticed that the gas pedal felt 'lighter' to the touch. It concerned me. So I believe it impairs, but maybe it made me more sensitive and alert of my surroundings.
My nephew says it makes him more focused, etc. but I told him not to be high and drive (or I'll kill him).
But maybe you're right?
(Your sig pic is driving me bananas).

