That level of attention to detail is impressive!...Of course, a properly regulated, cooled, dried and filtered compressed -air supply "should" be totally free of contaminants. but inert gas and once-only grit use is really first-class QC.
OK, I was being a bit facetious about the "tinfoil"....I'd probably be happy hanging under ,say carbon/Kevlar composite blades with a foam core, but the thought of tinfol and foam construction, with demonstrated erratic longevity,means I would not , unless you paid me enough to risk terminating my life early, step into a Robinson product.
I know a Forumite who flies Enstrom.... He sold his previous one to buy a 44 which nearly took his life. Admittedly, It wasn't to do with dodgy blades, just, it would appear, the Enstrom is a much better ship.
If a real legend and sky-God, Mr Dennis Kenyon, flies Enstrom, that's a good enough endorsement for me.
The Robinson is very cheap for initial purchase, for a reason.
I'm not that desperate to fly!