This blog posted at just the right time for me, I was looking at my gauges earlier today wondering how I could improve the pins for an upcoming project.
I have had trouble with pins that sometimes follow the grain, some with conical shapes, some with knife shape. I experimented on one with a solid wood beam, easy pin removal, and used a drill as you describe in the blog. Came out fine in my opinion, went down the board without mishap. It was really sharp though. Problem is, it was a common nail, soft material.
Thinking about it later, it occurred to me that I could use either hand sewing needles, or machine needles. What is your opinion about this?