I realised the jog wheel of the Push 3 is just too slippery for scrolling through long lists. I would have appreciated a little "dent" / deepening of the finger on the top surface, but that's not there.
So I put a rubber band around the wheel. I could not find the right size easily at the usual market places. So I cut a bicycle tube

and now it feels much better and it is much more convenient to scroll though longer lists...
Cheers
https://www.dropbox.com/s/x2yyhvqbrsr2t0q/jog.jpg