Plus if you think what we put into flies all the time, we come across this stuff regularly through our bushcraft experiences. Believe it or not I make a buzzer pattern from 550. I recon on the whole we should collectively be promoting it, the more people start tying and fly fishing, even tenkara for the primitives, we could do wonders for the sport but also the skills use for us all. With a note on Davie McPhail's tying videos, I really improved my tying since watching his videos.