@bellebe What a nightmare. I don’t have much useful stuff to offer as the only problem I’ve ever had is Quicksets kinking when I use them in my stomach so I use Silhouettes there instead. Have you tried your thighs or back (roughly the same places you’d use of your stomach, wherever you can pinch a bit of fat) I use Quicksets in them a lot and get good results.
Much as I’m loath to send anyone to any site other than the wonderful ShootUp, http://www.insulinpumpforums.com is a brilliant, friendly forum populated by lots of Americans, Canadians and a few Brits. There’s often threads on there about infusion set traumas and you generally get some good responses so it might be worth a try -but make sure you come back to ShootUp eventually