#1 Yes, I think he is! Again, you might ask him to demonstrate for you. You will probably learn all about aluminum wire "bird's nest" removal from the wire drive system using his method. The small diameter & very soft aluminum is very difficult to "push" satisfactorily with normal wire drive systems. Pull type MIG guns with drive rolls in the gun itself, or spool guns are the common solution to the above mentioned problem. #2 The machine mentioned in post #1 is sold for using self shielding flux cored wire. The gas conversion kit contains a solenoid gas valve, gas pressure regulator, hoses etc. to convert the machine for use with solid wire electrode that requires gas shielding.
