I'd recommend the I MIG 205 over the 205P unless you are using it for spool gun welding aluminum only since it does not have the capacity to get into spray mode for the pulse to be effective with steel. The new 205P should be up on our site now so you can compare.
I don't know what all the specs are of the "arc mates". All I know we come out with something, they copy it and have told me they would continue to do so (from the horses mouth so to speak). I don't go over there anymore even to check because it makes me mad. Anyone can back and research how they operate and how long our products have been out and the effort we put out. We work hard to put out new stuff, they come up with their copy. Don't know and don't care about them at this point. We have our eyes set on the bigger fish. Anyone ever check the number viewing our forum over on WW vs Theirs at the same time on average? Enough said about that. I will say that I do know they had Chiry copy the I MIGS a while back and they were pretty poor. They even posted a video of them on WW and could hear it was running awful. We had phone calls with funny numbers coming up on ID and chinese accents wanting to "know" what this function did and that function did for about 2 years.
For the record, we came out with the Proto-PowerTig line in October 08 and had it fully phased in by March 09. And theirs "new igbt infineon line"? Introduced a few at Atlanta this year and then didn't have much in stock until February or March OF THIS YEAR!!!...
Another point to prove my point....LOOK at their control arrangement. Any one looking at theirs versus ours can TELL someone over there doesn't know what they are doing...Looks like they grabbed a handful of controls and threw them at the panel....I believe they claim to have an R and D department...hmmm. Any one that studies design and evolution of it can definitely point the finger at someone "copying" something without understanding what it does or its function. No doubt they will read this now and copy our arrangement too. I can provide ALL the original panel designs I have made for the welders when we first get the concept of the machine. Can they?
Which company would you rather buy from? The one that comes up with the stuff and KNOWS WHY they did something or the one that copys the stuff without knowing why something is there. No doubt they are using some of our same parts suppliers, its obvious...But the way things are put together makes the difference.