Given Mr. Springfield's reputation, it's not something I would personally worry about a whole lot. On the other hand, he's a human and as such, subject to the occasional error. It's not an illegitimate point, but it's not an overly worrisome point for me either. If you can afford the Geiselle as the alternative to a trigger job, by all means buy the Geiselle. If not, get an affordable trigger job from a very reputable smith. Based on the trigger work I've seen, there is very little geometry change in the parts themselves, mostly burrs are removed and critical surfaces stoned square & flat.