I know what you mean. After riding fixed for almost a year, I picked up a 10sp Raleigh at a flea market and the firs time I got on it ... well, freefalling is a good way of putting it. I still find myself trying to use my legs to control my speed even after riding for a few hours. I also notice a definately drop in awareness. Friday I was on my way to work and started to adjest my brake tension when I saw the car to my right move forward and I went forward a bit, thinking the light had turned... it hadn't. Had a bit of a shock when a car flew in font of me with it's horn on. I couldn't believe I did that! I kept thinking ... if I didn't have this stupid brake! (of course I had to blame it on an inanimate object!)