Correct, they are CXR’s. I posted my experience doing the hack on the other thread (Jan 8th) but this how I did it.
"Assioma spindle → CXR o-ring → CXR pedal body → Assioma end nut → CXR dust cap.
Everything is tightened to 9Nm and spins freely. I initially tried using the Assioma inside washer (too tight) as well as the Assioma dust cap (too tight)."