hello all, names nathan,restoring classic american car, been mig welding for many years, have an ol faithful clarke 105en great for panel work and bits bobs,thinking of upgrading to 151 clarke,like as not overpriced,reakon mine been a great deal plus spares plentiful, now heres my thought, what are these like for ally welding? change wire and gas but do they give enough amps? only doing some 3mm ali, any suggestions most welcome, ps the piece im going to be doing a "one off" <custom dashboard> did not really want to go mental on buying specific welder for one job! cheers again thanks in advance, nathan.