My ST2 has been (and still is) a fantastic bike. Does everything I've asked it to do, never gets seriously embarrased by bigger, sportier bikes on rideouts or trackdays - in fact on DSC trackdays it's been very happy in the fast group and holds it's own with 748's and 916's...even 996's.
Echo everything that's been said about the panniers and stuff - except mine hardly ever wears them because it's been set up on the sport side of the sport tourer equation. I've got an 888 now as a stablemate for the ST, so the ST's going back into touring mode, but I love it. It's such an under rated bike that I'll keep it until it falls apart.
So if I were you I'd go for the ST4S, because it's like my ST2 on steroids. I can keep up with Monty round the twisties, but give him a sniff of any road where he can open the taps and he's pulling away into the distance
Jools
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