I'm tempted to say yes, I know exactly what you mean. There's definately a saturation point for me, where couchlock is prone to occur, but theres a definite zone where I can rock a good body high and have a heightened awareness of my own body and its position in space.

I've done a lot of kendo with friends high. It becomes very fluid and effortless. I've always considered that I just thought it was more fluid, and in truth, I was high. But you also can't argue with results.

Science will choose to never back us up on this. But I wouldn't be surprised if you're right. Somehow.