Well, at about 2400 miles on my new B1250, my rear D218 is on it's way out.
I've had no complaints on this tire, it's been sticky and predictable even with the flat spot now occuring in the middle. I've used the tread all the way out to the edge (no chicken-strips left) and once got them hot enought to melt some "string cheese" off the edge, (it was over 90 that day) but generally haven't gotten too crazy. Haven't touched a peg down yet.
The flat spot is from the sheer torque... I have NOT done a single burn-out or spun the rear at all, but the temptation to crank on the throttle in the higher gears on this bike is too much to resist... the g-force pull is way too addicting. You don't see a black stripe, but it's definitely leaving rubber on the road.
The front still has a thousand or two left on it. I use my front brake aggressively and often, but the tire is wearing smoothly and evenly. I'll probably change them both out at once anyway.
These OEM Dunlops were definitely not intended for longevity, but they handle nice and stick good. If the D205's or D208's are anything like them, they'll only be good for 3-4K or so, which drops them from my list.
Right now I'm looking hard at the new Michelin Pilot Road
2CT's as my next pair, or possibly the Continental Road Attacks. The new PR-2's come in a 190/55ZR-17 size, most 190's only come in a 50.
Like anyone else, I want the best of both worlds... sticky and long-lasting. But I'd rather sacrifice a little corner speed for a few extra K's of mileage at this point. I don't run with a pack of sportbikes, and my budget is a concern. I don't mind paying for the best, as long as I don't have to pay often.