JCPCs don't tend to spin very well. After a while of having one side slick, I have developed a habit to slide my foot on the pedal to make sure I'm on the correct side. It's become a subconscious thing and I don't even realize that I do it anymore. Also as a side note, if you crankflip then you will always end up on the slippery side of the pedal and its quite easy to get a shinner.