So, more bad news with the frame. Had another failure I noticed yesterday. The very clever through bolt that allows mounting a standard shock instead of trunnion shock, well, it snapped in half, and bent. Luckily I was able to hammer it out, and seems no damage to the frame or bearings. I'm a heavy dude at 235+ lbs ride weight (105 kg ish?) but this happened at moderately tame riding, XC or light trail style stuff. I heard a pop going over a log rollover and inspected the carbon, but didn't find any problems. I rode another hour without issue, then rode the streets home. It wasnt until the next day I notice the bolt was a bit proud, and couldn't be screwed back together.
Anyway, I have a fairly simple and inexpensive fix in place right now. A stainless steel 5/16 x 3 inch (or 3-1/2" cut down a bit) bolt fits snugly through the 8mm shock hardware, but is too loose in the 10mm frame bearings. I found some loose chainring bolts from old style 104 BCD chainrings fit the 10mm bearing just fine, and have a shoulder to keep them located. I simply needed to drill them out 5/16 to slide the bolt through. Anyway, there's the tiniest little bit of play, but nothing I'm concerned about, so Ill continue riding this way until TanTan can come up with a suitable replacement. And if they cant, Ill just come up with a more elegant version of this stainless bolt. It works well enough.
So there you go. Another ding. I feel like they're using their customers as their QC department. At least I got a really good deal, and tend to enjoy wrenching and tinkering on the bike.