@Ginger I did, in fact, receive this back from you looking exactly like that out of the box. Unlike some others, I have not messed with my device with the exception of finger tightening the plastic insulator piece by hand! Even after you sent me a descriptive email on how to fix it at home, I opted to send it in for repair instead. Weird that the marks on my 510 seem to line up perfectly with the tabs on that tool you pictured. Almost like they slipped out of the groves and spun around the surface of the 510. When I received it and saw that 510 marred, I figured I would cut my losses and just use it if the 510 didn't leak. The 510 did not appear to be leaking after I received it back from repair. But then gradually began to leak. Why? I don't know. I did not design it, I did not build it, you did. I will be sending you an email soon. Maybe we can get this resolved.