Nice, you got everything, you covered it very well.
Much of my leather work is done in primitive settings or the projects are themselves primitive. I've never used the drill press for stitching, though I am aware that many leather workers do and to great effect.
I started with the lacing chisel, so I guess it's my most used technique, you gotta love the exact stitch spacing these tools provide but they do cut the leather. The advantage of the awl is legendary, the saber type edge of a good quality Osborn awl blade will pierce the skin and separate the fibers of the leather, this type of stitching hole closes in on itself creating a tight seal against the stitch, it's the reason you can't punch too far ahead, I find 5 stitches pre-punched is about all you can do before the leather starts to close up the hole. The major disadvantage of the stitching awl technique is getting a straight stitching line on both sides of the project, it takes practice and is helped by the use of a stitching pony.
In this picture to the far right is my #1 awl, just a Osborn awl blade glued into a piece of deer antler. To the far left is another awl blade made into a tiny sword I use as a pin in my hat. The bone awls are a very hard bone from a deer, not so great on thick veg. tanned but they work well on thin hides like deer.
The lacing chisels are on the right in this picture,
Just trying to add to the knowledge base, if it clashes with your intention please feel free to delete this post, if you would like to add it to the original post you're welcome to do that too.