EDIT before you do that unscrew the screws and try and screw them in evenly, the claw holes sometimes get caught on the thread. YOU MAY NOT HAVE TO RE-DRILL
Thank you Obi Wokka Kenobi
This seems to have worked, just. 2 things I'm worried about:
a) do the screws have a good enough hold
b) the claw plate will be touching the cavity cover plate, will this cause a buzz?