Do you know the part number for the correct regulator,I purchased one from connect,but when it came it is a diamond H and it wont fit you can only get one screw in,it was a strix that was fitted.
Had a quick look on MP and confirm that it is now a Diamond H.
Seems most replace the Stix with Diamond H.
Having done, well lost count of how many, I have never had a problem.
Holes should be the same as Stix?