Hey Cliff and Don.....as Don knows, I studied for a day with Bill McHenry and Jason Williams....and we talked about screws a bit, I have learned:
1. You can cross cut a single slot screw with a screw head cutting file available from Brownells, than put a little file cut scallop between the intersecting lines, and can almost always index that way, if not;
2. You can vary the depth of cut of the screw head hole in the handle material until the screws index when full tightened or
3. You can use unslotted heads...cut in a very small "pilot" slot, tighten down hard, orient your reference line and then cut in a slot to full depth.
The reason that we don't see this more often is that it takes a lot of time....simple as that.
Obviously, this is referring to slotted screws only. I don't think I own any knives with Phillips heads, and don't really care if Torx or Allen heads are indexed but it shows phenomenal attention to detail if they are. Handmade screws do the same as well.
Nobody has to agree with me, but don't tell me that it isn't important.
Best Regards,
STeven Garsson