Yeah, it re-adhered fine. I think that if I put my SGP carbon back on my phone, it'd be enough thickness to keep the phone locked together. But with the thinner SGP Matte back skin on, it's not thick enough to press the lower cases locking tab up into the slot on the upper case (this is all talking about with the felt out). But it's cool. Like I've said before, I'm glad my case is a bit looser, as I like the idea of having the room to keep my skins/shields installed while still using the case. Had too many instances with my 3G/3GS where slider cases scratched my phone.
That's funny. I have the SGP carbon on now and a brand new SGP ultra matte box on my shelf. I had one on back in July but it kept getting bubbles on the back ( weird ) so I sent it back and they sent me a whole new kit. I like that kit the most of all I've tried. I'm just waiting until they perfect the new anti-finger print screen protector so I can put that on. I have a whole mess of SGP and Lucky Labs stuff.