Favero Assioma pedal cleat problem

I had the Favero Assioma pedals for coming up to 2 years...never really had an issue until recently. My problem is quite the opposite, the shoe moves around a lot on the pedal, especially the left, and is causing some knee pain. The tension adjustment doesn't make a difference. However, moving from 9 degree to 4.5 degree float has helped somewhat. I have read that how the cleat sits on the shoe makes a big difference, I believe you can get shims to account for any gaps between cleat and shoe. Otherwise, been very happy with these pedals.

Likewise, no issue with my cleat articulation on my Assiomas.

I run genuine Look cleats with mine now that the xpedo have worn out, they work perfectly too. 

I do recall their predecessors (BePro) took umbrage to some cheap Look-copies, but that's by-the-by.

Well worth dropping Favero a line, I've found their tech support fantastic on two occasions that I've contacted them.

Hope you get sorted.

I have a set of these and never had an issue with whatever cleats I've used. I found the more generic ones to be better actually.

Have you backed the spring tension off all the way? That's basically the only adjustment that can be done on these (and most other) pedals. As soon as I get adjustable pedals I back it off all the way and then work my way to what's comfortable.

Hope that helps.