After reading an article I decided to try the LeMond method of scraping your feet like you are getting mud off it on every downstroke. Having pedals with toe straps, it seemed difficult because as I "scraped my feet" on the down stroke they would eventually slide out of the strap. Is there anyway I can correct this? It is possible for me to change the angle of my foot on the down strokes and tighten the straps (however having them too tight hurts my feet after a while). If I cant fix it somehow will I need to get clipless pedals and shoes?