I ran almost a full 2 pound spool of wire with my Titanium 125 with only few minutes of stopping and only to re-position or grind/beat to fit something. It was running on the G setting with 7 on the wire feed and it never cut out on the overload. It may only be 35% or less but it sure welds good and not issue with overheating. A friend was using it half the time and he owns a Hobart 140. His comment was "I wish I had found this before I spent $450 on my Hobart. This HF machine welds much better and burns in great." We were welding in all positions including overhead and it welded great. I did turn it up a bit for the overhead which is just like stick rod welding. Overhead requires a bit more amps but still it was at only about 80% of full power.