I got the Shimano 530 because I thought they'd present less pedal scraping in corners, they do but the problem is that what makes them present a narrower platform also makes them less comfortable when using regular shoes as there's no support on the outside of the ball of the foot. Ironically the chromed spring rusts up a lot more than the lower cost 324. I've got these pedals on some bikes that are outside near salt water and I noticed the release changing, looked at the spring and the rust had exploded through it, which didn't happen on the unchromed spring for the WellGo and Shimano 324 pedals. So if you ride often without cleated shoes get the wider 324 or Wellgo copy and don't pedal through corners. If you commute in salty/mucky conditions with the 530 put some thick oil on the spring to protect it from rust.