I'm running Shinko 009s now front and back, and while they may not last as long as a PR2 might, they are darn good, and half the price (seem like it anyway). I haven't been afraid to lean into a curve at interstate speeds on either the Shinkos or the Pilot Road 2's.
As a matter of fact the Shinkos I'm running now tend to need less checking by the air gauge than the PR2s did. I was constantly having to keep tabs on air pressure with the pr2s, but since putting the 009s on, I haven't filled them nearly as often.