I had the Roadsmarts slide the front on me in both braking and cornering decidedly earlier than my other tires on the SV. When I contacted Dunlop with a complaint, the reply was essentially that this is a sport "tour" tire, not a sport tire. Then they mailed me literature on their sport tire line.
My former tire would let me scrape pegs on the bike and hold solid as a rock. The Roadsmarts would slide the front well before a peg touched down. The SV leans farther than the ST before a peg touches down though. Regardless, this stuff still translates into emergency stopping grip levels as well.
In fairness, the tire stuck super well in the rain, very good there.
My opinion of Dunlop sport tour tires remains poor. In my opinion the rear Roadsmart grips very strongly with it's dual compound, but the front compound is not quite as good at gripping, allowing the front to let loose first (bad on a motorcycle it's preferable to have the rear slide first).
The stellar magazine reviews were what I went on to purchase these tires, as I'd had poor results with earlier Dunlop sport tour tires. I'm sorry I did purchase them. YMMV, but I personally won't trust them to all out maximal emergency stopping situations after trying them (I can lock the front up too easily for my taste). Additionally I did find a couple other complaints on internet forums. In general though people seem to like them well enough. I however am the type who would rather have a tire that sticks very well in emergency braking rather than get ultimate mileage out of them. There are rider types who revere mileage over grip. Each to his own situation. Just my opinion type thing.
I suppose the heavy weight of the ST may improve their stick behavior some, I don't know that though and am a bit skeptical, yet allow it may be so.
The Pilot Road is the one with the (2) designation Michelin Pilot Road 2. I found these to be very grippy, also very quick turning tires (they are on the Bandit). They require a light feel at the bars at high speeds going straight, but they are good once you get used to that. I'm not sure how they would do in a stiff wind on the ST but others I know seem to like them on the ST. I like them a lot on my bike. Like most Michelins whenever they do finally start sliding they start to let go a bit quicker than say a Pirelli would. However they hold on a very long sticky time before that, so I like them anyway.
Pirellis are my favorite for consistent dry handling and good grip so far (the PR2s are better in the wet though). The mileage isn't the ultimate on a Pirelli, but that's normally the case on a tire that sticks when you need it to. Unfortunately they aren't importing the Pirelli Diablo STrada in front ST size, so that doesn't help you guys.
Just have to remind you all occasionally that there are some who found the Roadsmarts lacking in grip at the front.
Dunlop D205 is a case in point, it performed solidly on the rear (not as good as any of the others I have mentioned, and no better life which was a further non-bonus), but I would never put one on the front.