My biggest problem is thinning thick spells and bifaces down. Frustrating. Learning a lot on the way, but without being able to thin the best point I made so far was a real nice Kirk Corner. I made it out of a preform sent to me by Jack Crafty.
G'day new to napping myself, I heard filling a copper tip is not good. better to hammer it, hardening the point instead of drawing the copper apart with a file. Also is there a difference in using say a nail or other metals?