Thanks guys. Onward to 8-7-08. Blew up some rock today before I mellowed in to some decent thinning flakes. Had a big Keokuk flake of nearly the right thickness, made into a preform fairly wide for the length. Went for this "style"....amateur, but effort was expended.....might make a decent knife. Ended up 1 3/4" w. x 2 9/16"l. Had to use a Dremel to un-stall these darn notches, so all apologies to the ABO contingent. You think that's what these types of blades were used for (knives, that is) ? Cheers-PD