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Runnach, I don't think the HF contacts are too bad, I've not taken them out but the feeler gauge slides smootly between them. I've tried holding the torch both ways, pistol-grip and pencil. I actually find the 'pencil style' grip more comfortable and I can use the pad of my hand to help keep the torch steady. The one on there now is water cooled but to be honest, I would get away with an air-cooled one as I can't run it anywhere near high enough to need the water cooling. One thing I've noticed with alu is if you do touch the tungsten with the filler rod, it pretty much destroys it, it seems to make it very 'crumbly' for want of a better term, maybe it's because I've tried to carry on once I've contaminated it rather than use a fresh one?