Use with xadapt12 kit, not curved clamps!
OK to be fair, I haven't done my final installation (waiting for xadapt12 kit) but can say I love the concept, just not the "clamps" that hold the portage padded feet. They don't really fit an AeroBlade very well (flipped or not). I am going to use Xadapt12 which holds padded foot to AeroBlade by means of T-bolt in AeroBlade track. (That's what center hole in padded foot is for.) Expect if to work excellently. Crossroads foot pack and AeroBlades also excellent.