Hi JD, I just burn the end with a lighter. You're right, the inside and outside do not want to burn at the same melting point. I sometimes have to melt the material more than once, but if you ease the flame to the material it seems to work better. All I really care about is that the material will not start fraying while fishing, I don't think the fish can tell if it's a little off. Of course my flys don't usually last that long anyway, either lose them in a bush or the bottom.
Ya don't know, if ya don't go!
mike
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