I already tried 'em all the way loose. That's where they are right now. I also tried about 80% loose, and all the way tight (couldn't even clip in with 'em that tight). I'm going to replace them with actual SPD-cleat-compatible pedals.
__________________
Treasurer, HHCMF Club
Now living in the land of the cheesesteak.
But working at a job where I can't surf BikeForums all day any more...