As my name suggests I'm new both to this site and (relatively) to the MAs. But I would think that for awareness purposes, instinct practice would be best. For instance, two friends (one is my 'older brother' teacher) and I goof around with different types of escapes. We don't do this just so that we know how to get out of a half-nelson (Oh, let me count the ways!!!) but any hold. We do this to train our mind to quickly think of the dangers and opportunities in each hold. (ie. in a sleeper hold, I'm told you have three seconds of conscienceness if you don't address your neck quickly) While, we take our time to think through them now, I hope to train my mind to be able recognize, assess, evaluate, and act within a split-second's time-frame. The whole reason that you do regular exercises and and techniques is to train your muscles to react on reflex when necessary. So, in conclusion, I think that our instincts should be trained not onlyt to react in a split second, but in some cases to think and react in a split-second.