[oj]

Be careful when using mig wire when tigging - they make a 'pencil' to hold the wire. If held in your hand and the wire grounds itself behind you it'll turn into a heating element in a millisecond and give you a burn that you'll never forget. It happens to regular tig rod often enough but it has enough mass that you have time to get away from it, that mig wire is so thin that it is instant redhot.
I've been wanting to try the silicon bronze thing myself, you'd think after 30 or 40 years of doing this i'd have given it a try. Always another way to get something done and something else to try.