I use this little piece of plastic for many years with two home dunlop and purples are not better!
They are thin, hard, strong, they have a good angle, good dcoupe, excellent!
ARTIFICIAL perfect for harmonics, the flat-picking .... On their electric folk conmme vitent the "frrrrp" Caus some picks too soft foam and even they sound good!
I have even seen the bass in use!!