I checked the RA, (small allen screw 2mm), but left play at what it was - about what is shown in the video.
DEC - no ticking, but some large sound when skewing at fastest speed. Decided since it has had the same lack of maintenance as RA, I thought it would be good to check it out. A LOT of play in it, a lot more than the RA, so I turned the small (2mm) allen screw about 4 revolutions CW to reduce the play.
I did some videos showing how much play it has now.
It didn't get rid of the sound you get at fastest skew, but I can live with that, sound. It is more annoying. Doesn't impact photography.
Thanks
