I went from old fashioned slotted cleats ( so zero float effectively) to clipless and was advised to start with cleats with I think 7* of float. On fixed wheel I found I could not rotate my foot enough to disengage the cleat without track standing without my disengaging foot at 6 o'clock. Going to zero degrees float has solved the problem without introducing any other issues with knees etc.
I went from old fashioned slotted cleats ( so zero float effectively) to clipless and was advised to start with cleats with I think 7* of float. On fixed wheel I found I could not rotate my foot enough to disengage the cleat without track standing without my disengaging foot at 6 o'clock. Going to zero degrees float has solved the problem without introducing any other issues with knees etc.