Here is a scary story of a guy with PR3s on an FZ6. Not sure what is going on here but the pictures in his forum story show the PR3s chunking rubber. He mentions nearly 10K miles on these tires but obviously that is not the case, the tire in the pictures does not have 10K on them, the bike does, so maybe he just wrote it up bad in his story?
http://www.fz6-forum.com/forum/fz6-general-discussion/35444-michelin-pilot-road-3-here-8.html
http://www.fz6-forum.com/forum/fz6-general-discussion/35444-michelin-pilot-road-3-here-8.html