OK, this saves me some effort in pictures.
Some yanks have proved my point. the JK body is NOT the place you want to be attaching any sort of body protection if you wheel hard.
PS: Below pics are of a 2 door fitted with PPM rocker sliders.
http://www.jkowners.com/forum/showthread.php?t=54056
So yes the PPM protection is bloody strong but no the JK body is not.
Mind you the damage there if there'd been the Rubicon rock rail or none at all probably would have been epic.