Don't be so humble alan, I've seen some of your rhyolite points before through various searches I've ran on rhyolite. I can't see the pics right now because I'm on my phone but ill check em out.
I know what you mean about different rhyolite, I've got some stuff that's awful, then I've got some that's not so awful. I've seen a lot of nasty terrible rhyolite in my short knapping experience, but I gotta say, I've got some that's very nice. Certainly not the grade of that knife that james posted last fall but pretty fair stuff.
I shoulda kept to my word and took james advise and what you're telling me Alan, and put the first stage biface away and did another. I've ruined two nice spalls of good stuff this past weekend and last week. I should have laid it down but I got confident and went for it anyway.
I'm going to be a stubborn carolina boy and keep at it. Lord knows if I do get a point made, I'll need it to be made of rhyolite as hard as I am on things.
The moose billet seems to do well when I've used jonathan's but james said they're too hard, so I just haven't gotten one. If at all possible, I'd just as soon use what they had available here. Stubborn and makes for a hard row to hoe, I know.