Very nice write up. I thought I was the only one anal enough to use an exacto knife.........
I also use a bunch of tape to make sure I have the break line between the barrel/action cutout and the stock covered. Plus I don't want any epoxy on the stock.
I hear you on the 2 action screw thing. I did a "test" of sorts. I put the action in the stock and used only the finger tight tang screw. The action didn't move. I did use 3 layers of black tape on the barrel to keep it centered in the channel. I could see where using the tape could raise the barrel enough where tightening the action screw could create a torque issue. I did the tang action screw thing to both of mine this AM. We'll see how they turn out.