I haven't had any issues with the 9 P-86's on my snares. Love it.
Started putting them on/ordering them when it came out--however many years ago now.
I liked how they looked first off, when it worked great, I wanted them all the same so I bought a few for what I had at the time.
Didn't have any issues with my P-85's though.
I DO have a loosening problem with the strainer no one else has issues with though, so go figure.