Hi, thought I would help start this thread, I put on PR3s just before a long tour round Scotland, Campbeltown, Oban, Wick, Inverness, Aberdeen, all to visit my old haunts and old family! The PR3s were absolutely fantastic, from dry roads through to torrents running across the road they worked well, warm up quickly and seem to wear very well. My mate who was behind me in the rain said he was amazed at the clear line I was leaving in the wet because of the way the tyre dispels the water. I haven't had a chance to try them at Cadwell yet, hoping that will be soon though!
I love mine for all the reasons you've said, but I also feel that they changed the feel of the bike for the better. You may have seen else where that I'm off to Donnington on mine in May, Im interested to see how much a day at the track will wear them down.