Not sure this will help much, but I've been trying to establish how good hein gericke stuff is as an alternative to the very expensive motorex oil recommended for my KTM.
My online searches have not been fruitful, but I did see one report of hein gericke oil being used in a KTM with no ill affect (I didnt find any reports of bad running).
Most things I've read seem to suggest that as long as the oil meets the relevant JAMO standard, then it should work fine. I use HG oil in my old bandit with no ill effects, but the bandit engines are unburstable and old tech, so I wouldnt draw any conclusions based on that.
If in doubt (which I am), I'd just buy the expensive stuff and forget about it