Do clipless pedals make that much of a difference?

[Cataboo]

bah reposting my question in the text box.

Does clipless help or worsen patellofemoral syndrome (runner's knee)?

There's a patellofemoral thread going on on here elsewhere - both wahine & trek420 (or maybe it's knottedyet) have commented and are physical therapists...
http://forums.teamestrogen.com/showt...590#post464590

I have patellofemoral syndrome in my right knee... I use speedplay frog pedals because they have a lot of float (lets you knee move around), and I don't have any knee pain cycling (as long as my seat is at the right height and my cranks are the right length). Being short, I use 165 cranks. 170 mm cranks on my mountain bike.