in the process of shopping out my RFM, I had to replace an improperly installed cliffy for the stroke of luck hole (which was all bent up).
I also ordered the hole protector from marco specialties which fits both the monster bash and revenge machines (I figured while I was going to tear it down that far, I might as well "bullet proof" that area
http://www.marcospecialties.com/pinball-parts/HG-19
needless to say I'm quite happy with the results and hat's off to cliffy for one extremely thin, but awesomely designed piece of protection! 
