juruense are dirty versions of tigs.....when you see a tig theres no question about it, if you do have to question then its more likely a juruense...plus price factor, juruense is around $40 - $60 for a 4-5" where as a tig is $100 - $200. These are LFS prices of course and not MFK thus the wide price difference for tigs...some LFS is selling 4-5" tigs for $250!! NICE TIG BY THE WAY!!