Tim,

Went to Phiily 5-6 years ago for a demo. Our product line was SS tanks/vessels that needed to be filled with gas which needed to be leakproof. We manually TIG welded all these vessels sizes varied from small to very large and were looking for a quicker method or speed up production.
We found that 1. The starts and stops were similar to GMAW stops and starts killed us when it came to leak points. 2. The position of the wire feeder on torch being at a fixed position were difficult when welding around  corners and out of position. 3. Torch was pretty heavy and awkward. 4. Took sometime to get wire feeder adjusted to process. 5. Removed the art out of TIG welding in general.

I asked for some references and was never sent any by the owners of the company.

By saying all this the process could of be much better to date. Just my 2-cents.

Thanks