AWD,

For what it's worth, I've run both the Jaco Prism and the Parma Blackhawk back-to-back, same compounds, and had much better luck with the Blackhawks.

I ran 3 full race nights (that's 12 heats total) on the same pair of Blackhawks (Yellow Rear/Dbl Pink Front) with minimal chunking/peeling and then the first heat out with Jaco Prisms (Yellow Rear/Dbl Pink Front) the rears came back all chunked to crap !

I don't know if I just got lucky or if Parma uses a different gluing process than Jaco but I know a few others with similar experiences to mine with the Blackhawks.

Cheers,
Mike