I've used 'em all over the years as typewriters from IBM and Facit were full of Bristol spline fasteners. I always hated it when they mixed Bristol and hex setscrews in the same machine.

The biggest problem I see with Torx fasteners is using crappy tools. You must buy decent tools. This is especially true with the smaller sizes. At least buy a tool made by Allen or Eklund or Bondhus.

My pet peave is the difference between US and JIS Phillips heads. The angle is different and I see screws every day stripped out because someone used brute force with the wrong screwdriver.

Doc