which welder to buy Eastwood MIG Welder 175 Amp with Spool Gun Item #12012 for 499. and free shipping the or MIGWELD 200S Longevity for 599.00 +sh trying to figure out what will be the best for me? Does any have these the eastwood is 30% duty cycle @ 130A and the longevity is 60% @ 200A but it...