I just received mine, but it is very difficult to open and close. I have to apply a tremendous amount of force, and I am afraid over time the stress on the probe will cause it to break. I haven't seen anyone else complain about this, so I am wondering if mine is defective. Is this the case for anyone else?
HansGruber44mine worked well too, the only issue was that a great deal of concentration was needed to line up the tip of the probe and the slit when folding back.