I am curious. Is the 225LX a completely new model for 2009-2010 (or earlier)or is it a scaled down version of the 250XX model? If there has been an update, what was updated? Just wondering about the engineering, etc. Was the 225LX something that Everlast requested or just another tier of welder that the manufacturer builds? Do all these machines come from the same factories? Where in asia (and by what company) are these welders built?