Definitely this for the most part. I'll sometimes pull up when moving away from the lights from a standing start, but that's as much about poor gear choice as anything.The only time I pull up is when my feet are getting a bit achey on a long ride, it sorts that out a treat, and I still haven’t had an unintentional release, because in order to get the multi release cleats to release on pull up, you have to push right forward on your toes first. If you get an accidental release, you haven’t got the pedal tension set high enough, and / or your foot is in a very strange position for normal riding.