I have a older Maltby Golf Club Machine that I have adjusted lofts and lies on for many years.  I recently bought a set of Callaway Mavrik irons that I wanted to weaken the lofts slightly.  When I tried to fit the club head into the holding fixture it would not clamp properly.  Can anyone tell me if they have had this problem and is there a way to modify the fixture to properly accept the Mavrik?

Thank you in advance

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