I've had them done by Kirby Allen, Mark Bansner, and Ray Romain (now deceased)
These guys are world class smiths, they make a good living building rifles designed to perform for the purposes they build them for.
If there was any chance that the triggers were unsafe they would not work on them, you don't work that long to build up your reputation just to tear it down by selling unsafe parts in your package rifles.
RR