Just wondered if any of the forum members use a Shindaiwa Eco420 as I'm looking for a replacement set for my elderly Arcgen 300. I'm after a CC/CV set and this looks to be the smallest that they do. The Arcgen set that I have has been excellent and I was tempted to just replace with their Weldmaker 330 CC/CV set but thought a bit of investigation might be worthwhile before I commit. I've more or less excluded the Lincoln and Miller sets as they just don't seem to have the longevity of the Japanese built machines. Interested in hearing comments (good and bad) from anyone running either of these.