There's two versions of the S-02. Plain old S-02 and S-02 Pole Position. The plain one is a "dry-only" tire although not to the level of say the BFG g-Force KD. OEMs get that one, not the Pole Position. The S-03 is also a Pole Position tire, that's the name Bridgestone tacks on to its high-po rain tires.
I know the S-03 gives up a tiny smidge of dry grip to the S-02 variants but the rain traction is way better which is why I'd like to see it offered to OEMs. The plain S-02 is still good, just not the best tire Bridgestone has out now.
Okay it's my fault for derailing the thread...back to the GTO!