I have a thunderbolt XL AC/DC welder. It works fine. I am not a professional welder by any means but I burn about 100lbs of rods a year on average with the vast majority being 6010 with some 7018. I have been eyeing these everlast inverters and see how well the 200 & 300 are recommended and how well they weld. My question is do these machines weld significantly better than my current machine as in I will notice the difference? Is it worth the cost to upgrade or should I just use what I have since it works? I know this probably just boils down to personal preference I just have no idea how different the welders might be and what I might be missing out on.