He might be referring to the stop that they put on the CDS dial, but that limits you to one rotation,with 200 zero that is typically 700 tops. I ordered mine to 1000 and they did not take out stop, so I did
leupold is really missing the boat as well a most scope makers, GIVE US A FREAKIN ZERO STOP!!!!! IMO it should be on all scopes with a target turret. its pretty simple for them to make, the graybull scope has a zero stop and it has a plain ole target turret with a zero stop.
the CDS turret is a nice setup but you only have 15 MOA to work with.