I'm thinking now that these Indians didn't have time to make those fancy stemmed points because they were too dang busy doing wood working. Only thing I can think of for the use of that many was they must have made shelters out of branches and covered them in hides. Used the old CF to tidy up the branches used for support. Must have looked like a desert went they got through, no trees left.
# 4 in both pic's has a more rounded cutting bit, that's similar to what I see on most of the biface examples, the Paleo ones. Good showing of woodworking tools there Hal.
The Paleo CF's sometimes look like fat preforms and I used to put them in the preform pile till I started seeing a pattern to their shape.
#4 probably saw more use.
That's a real montster. That had to one big Indian to swing that thing. That or one with an overactive imagination. Most of mine are between 3 & 4" with a couple of mini CF's. Probably twig or toothpick cutters.