Not on a Tormach, but I'm using the TTS system and my mill is Tormach-sized - does that count?
Below is a 3/8" blind dovetail in a USPSA open-class 2011 slide. That was a high pucker-factor cut due to the amount of work already in the slide, plus the cost of replacing it. Cut straight pocket first, then had to whittle out the dovetail as much as possible with a 3/16" carbide DT first so the HSS 3/8 cutter wouldn't snap when it hit the blind end.