Qx05 Pn305 Mystery

[Neroaddict]

In reading an article on Note+ from pentel I stumbled apon the following image of a qx05 pn305.

It seemed to have a sleeve more akin to the orenznero without the second step.

All other photos of the qx05 pn305 I have found elsewhere seemed to have a stepped sleeve design.
The patent also seems to have the stepped sleeve design.

Does anyone have info on the first qx05 pn305 and why it has a different sleeve?

[nimrodd]

I have that page off the Note site saved, but I never noticed the difference in the tips. All the photos of the QX I have saved have the silver step tip.

[Neroaddict]

leads me to wonder if the different sleeve means

a. a display model with no special functionality

b. a prototype with a weaker sleeve

since they do looks slightly different with the caps posted