Anyone use a double pulse MIG?

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I was talking to Everlast last week, about a new TIG I want to buy, and the sales/tech guy suggested I consider (similar in price to the unit I was asking about) a "double pulse" MIG instead.  Model name: POWER I-MIG 253DPI.  My primary interest is welding thin aluminum tubing (.050"-.0625").  The guy at Everlast thought I might better enjoy their new MIG that has a double pulse feature and could be used on thin wall aluminum.  I don't have experience on a TIG yet, but I always wanted one.
Reply:As someone who has 2, Miller 350p aluminum welders It's not the easiest to weld thin alum tube.I personally would do that in tig instead of mig.If anything, demo that unit before you purchase it.
Reply:Double pulse is basically a gimmick. It adds nothing to the strength of a weld. It is really just cosmetic.
Reply:Not only is Louie correct about double-pulse only adding aesthetics, it's not too favorable for aluminum thinner than about 0.080.  Single-pulse is more suited for thin aluminum in MIG.  Also the double-pulse on the 253dpi is not synergic and is completely fully manual where the operator must set the both peak/background currents, and the proper voltage offsets for both of those currents, as well as the pulse frequency.  21:20-onward into this video illustrates this. Like Zila says in the video, the benefits of manual settings is you get to dial it in, and the drawback is that you must dial it in.  No other way around it.  Just look at how many coupons he used, wire, burnt-back tips he went through, lol.TIG would be better for thin aluminum hands down, but thin-aluminum MIG is possible with a better machine like the HTP Pro Pulse.  They can weld down to 0.030" in the Precision Aluminum Welding synergic single-pulse program.  It's a specially designed program that actually only works with thin aluminum and only up to 0.079" (the other programs take care of thicker stuff).37:40 into this video illustrates this.That being said, just TIG weld it, lol.  I've only used mine for aluminum MIG a handful of times.  If I had more aluminum projects/work I'd probably use it more, but for a few things here and there TIG is more convenient.

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