I thought you had found some official chemical analysis findings from a reputable firm or something...that was nothing more than a few guys discussing problems and blaming Natural Lube 1000...the real problem is a lack of understanding the big picture...the dependency on getting the bore clean and back to a pure raw bare metal state before you begin with NL1000, and never allowing oil in the bore after that.
By contrast to those problems being discussed, I make a range trip every Saturday morning that I can year round...summer, fall, winter, and spring weather covering the extremes of temperature and humidity...doesnt matter, works perfectly any time, every time, all the time.
I dry patch the excess NL1000 out of the bore when I get there, use Goex powder, Natural Lube 1000, Hornady balls, shoot 40 consecutive shots without ever wiping between them, then wipe the bore for the trip home.
I clean it 100% thoroughly with steaming hot soapy water, hot water rinse, bone dry the bore, and very heavily coat it with NL1000.
TC's own documented, published results state that they stopped after 1,015 consecutive shots without a patch being wiped down the bore.
I've been doing it with Pyrodex & percussions, then Goex & flintlocks approaching 15 years total now.