It's virgin territory, more or less.
Not a lot of people have used these tires for long enough to get wear comparisons. Even fewer have tried more than one.
I've used all three in the REAR of larger, heavier dualsports with gobs more horsepower and have very definite opinions about them in their "normal" intended use.
The same goes for their skinny 21" counterparts up front. But that's's comparing apples to oranges.
We'll see how they all shake out as REAR tires on the FRONT of a TW.
Try the IRC and let us know how it works/wears.