I'd never heard of the Henrob Cobra 2000 torch- went to their website and it looks very interesting. This from their site:
"Independant tests on aluminum and stainless steel verify weld strength equal to Tig welds. The low oxygen content of the secondary flame also minimizes the need for flux. In fact, many operations require no flux at all. As a result, weld operation and post weld cleaning requirements are minimal."
No flux at all! Intriguing to say the least. Steve, have you been able to get these kinds of results?
DaveO
Oxweld oxy acet gear
IMIG 200
PowerTIG 210 EXT... Amazing!