partysnackI have 2, both do have much more play in the tip than sliding-sleve style pencils (Rotring Rapid Pro 0.5 and TWSBI Precision 0.5). The amount of play is similar to the amount in the uni-shift 0.5 and TUL 0.5.
Further, it appears that if the top is twisted to force the tip out a bit further, the wobble is eliminated. Examination of the retractable tip shows a slight increase in diameter further back, which I expect is supposed to reduce wobble. Unfortunately the slightly thicker portion is not normally far enough forward.
Further, it appears that if the top is twisted to force the tip out a bit further, the wobble is eliminated. Examination of the retractable tip shows a slight increase in diameter further back, which I expect is supposed to reduce wobble. Unfortunately the slightly thicker portion is not normally far enough forward.