I have had the same set of speedplay pedals since I started recreationally road biking (the ones with 15 degrees of float) two years ago. I am now racing and want less float because I feel that I am worrying too much about the positions of my feet. I am open to a new line, but I like the ease of the speedplays. I am not sure what the right pedal for me is, or how less float will positively or negatively affect my pedaling. I am looking for improved performance, if that can be obtianed from a different pedal. Any imput on fitting would be good. I typicllay spin with my heels in, sometimes brushing the crank arm, but I am also comfortable with my feet straight. I am slightly worried that it is the ability to change my position is helping my knee.