"annoying geartrain slack"

[Marrk]

Worktolive and others recently posted about "annoying geartrain slack" in Rolex watches. Specifically, they were commenting happily on how their Daytonas (cal. 4130) did not have any annoying geartrain slack.

The last time I was at an AD, I picked up several watches, including an Expy I and a 14060m. Both were M-series. While adjusting the hands, the Expy's hands moved precisely and beautifully and stayed where you put them, while the 14060m movement had noticeable slop in it and it was difficult to set the minute hand precisely (read: impossible) on the minute markers.

Expy I and 14060m have the same calibre movement (3130), so what's up here?

Larry? Mike? Any other TRF experts?

Thanks.