What is the story with that one?
Not a perfect fit I'm afraid. The original Signal blade has an offset grind to accommodate the awl. The TTC one does not have that offset. When I fitted the Wave blade I had a similar problem, but could remove enough of the awl to keep it useful and still use the Wave blade. I did have to add an additional spacer. The TTC blade did not fit and I would have had to remove more of the awl, which I really don't want to do. Being Damascus it also does not open in a smooth motion as the blade is a bit like sand paper. So sadly it is in the parts-bin, pity though, it is a beautiful blade. There is a thickness difference too, with the TTC blade being just sort of 1mm thinner.
In hindsight I should have bought the MUT blade, I don't think I would have had the same problem.
Pete