Your just havin too much fun
![Grin ;D](http://www.primitivearcher.com/smf/Smileys/default/grin.gif)
. I got a new video (replicating the type 1C neolithic danish dagger) and have a answer to your question - the dry spots are (and I've heard it before but forgot) TX concrete. thier like limstone or other grainy inclusion's and don't really change with heat treat - only thing you can do is try to get around them if you can
![Smiley :)](http://www.primitivearcher.com/smf/Smileys/default/smiley.gif)
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