I have a lincoln idealarc dc 250 with ln7 wire feed - tweeco 400 amp gun - just purchased - this is not the tombstone type - it welds mig tig and stick - I am interested in the mig format - if anyone has direct hands on knowledge using these I would like to speak to them via email - I am paticularly interested in wire speed and temp setting with regard to welding 3/16 mild steel - my direct email is [email protected]