I can't play along much Joe. Lowest # I have is a 12000 range. There is however an obvious difference in the plates somewhere between 17000 and 22000 that I'm sure you've already made note of. That is the cut at the rear, call it a filet if you will, runs right through the screwhead on 12000 and 17000, but is above the screwhead on 22000. Oh, suppose I ought to post some crappy pics to illustrate.Information
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