FYI, right now I'm leaning towards an Avon Cobra front to go with my Venom rear, but those are a bit pricey...
The Shinko 890 Journey (SE890 now I guess) had some out of round issues reported here, and some more recent reviews I've read (on other bikes) indicated that they weren't very good in the rain/were a bit stiff. Dunno if anyone here has recent experience with the SE890.
At least there are still some 'wing' sized tires out there. Michelin should never have discontinued the Pilot GT, just sayin...
Back on topic, I've just never heard of IRC before. The above-linked tire is a Bias tire, but the tread design looked interesting at least (i.e. no centerline groove).