My partner has had significant knee pain in her right knee as of late. The pain is in the front, behind her kneecap.

As we investigate the cause of this - we have realized, it has also been her right side where she was having cleat issues recently... not able to clip in easily, and having to seriously lean into the pedal in order to clip in. She had the cleat adjusted at our LBS, but she can't tell whether it got better or she just adjusted herself to it. (She uses Crank Bros. eggbeater pedals -as do I - and generally has been very happy with them - as am I).

Sooo... we have concluded that her knee pain is likely due to cleat issues. It has been suggested to us that she should get "floating cleats." My question is - what exactly IS this? I gather by the "context clues" that the cleat is not fixed to one place and therefore allows you to adjust to the pedal and not the other way around, however, I have yet to find a diagram or clear explanation of what a floating cleat *looks* like on the sole of the shoe. Apparently, Crank Bros. makes her cleat with a 6 degree float - but what does this mean? Is she already floating? Is it just not working? Is there more we should do? I feel I am missing the meat of the information here.

Anyone have any info? Thoughts? Advice?