Great looking knife Urthman! I enjoyed reading your posts because they show that you're trying different things! You are 100% right about asking knife makers about tempering. I can get ten opinions from three guys all in the same conversation. My best results always come from trial and error. It's always a trade off for me between edge retention and toughness. If the blade will be used for flesh I dont worry too much about flex, if it's going to be a chopper or camp type knife I try to make a pry bar with a R54 edge. Thanks for the tip about the pipe to tame the temp swings in the oven. I'm using a toaster oven with some refractory added and I've never trusted the actual temp settings on the controls. Time to add an oven thermometer! Again, Great looking knife!