I've had DZR, currently have Rumbles for summer and Quoc Pham hardcourt boot for winter.
I think the sole of the Rumble is stiffer than the DZR, at least, stiffer than the ones I had (can't remember the model). About the same stiffness as the Hardcourts, but the latter are a bit nicer to walk in.
I've had DZR, currently have Rumbles for summer and Quoc Pham hardcourt boot for winter.
I think the sole of the Rumble is stiffer than the DZR, at least, stiffer than the ones I had (can't remember the model). About the same stiffness as the Hardcourts, but the latter are a bit nicer to walk in.