I just received a black Wing Sung 698. Looks elegant. Cap wiggles a little when I post it. That's OK.
Cannot get the piston to move. Has anyone else seen this? Any fix, other than soaking it piston-knob down?
The pen isn't designed to post. Don't do it, the end is the only stress point, the chrome ring near the piston knob is threaded onto the plastic and is the only place I could forsee a failure.
I wish it posted like an M200, then it would be the best pen under $200 money could buy, IMO.
The directions on the pen are in chinese, but they say to pull on the knob before you turn it, it's kinda hinted at with the arrows on the knob. This way you can't accidentally unscrew the piston and lets them build it to slightly less precise tolerances while still being stable and reliable.