I found out my issue, I'm just retarded and forgot to check all my bases first. I pulled the clutch stop out, and A) It was squished down quite a bit (rubber washers don't hold up over time), and B) I noticed after I took it in for service the last time there were two black disks on the floor, but thought it was from the door panel since I was at the dealer for that; they looked like hole covers from the door panel (I took my car without the door panel installed and was pissed, so I didn't think about it, but that's another story). Well, those two disks were park of the clutch stop that had been mashed off when the tech likely took my car for a joy ride...don't know how else it would have come off unless it was a coincidence...but likely they just jammed on it like apes. I went to Lowes and replaced the spacing with new metal washers and put a new pad on the front, shit works fantastic again.
Sorry this isn't helpful to you OP...
For OP, definitely give Achtuning a call, and do as Mike said and make sure to contact Southbend, or even have Mike call the owner since he has offered that up to you. You're 6k out of warranty on the clutch, and yes clutches are wear and tear, but when you buy aftermarket they should last even being abused for longer than 18k miles. It is possible it was part of their bad batch that went out too, so definitely look into that!
Hope it all works out for you, sucks to see something like that hit so close to home