My Problem with Mervin's Asym (ridden the pickle and Impossible) is that they are using a softer core on the heelside just past the inserts tip to tail. You can't leverage the heelside as hard, so you put a deeper radius back there to make the turns inherently tighter and soften up the core so that it's easier to initiate the turn. That's what they think, I though it felt mushy on my heelside and even on the Pickle with full MTX it felt washy. Deeper is fine, but so far I've liked a thicker band of core in an asym construction behind me heels more than a deeper sidecut. More to drive my heel into means more edge bite and that means I can drive into the sidecut more. Put asym core and sidecut together? Yes please.
Go ahead, drink that kool-aid.
FS: Forum Sauce 142 $200 plus shipping
FS: Flux SE30 $75 plus shipping