Yep, that seems to sum up my season so far. I would guess we have called in one for every 15-20 cat set ups. Have called in three long tail cats as well. How many cat hides have hit the stretchers??? None. Either we don't see them until we end the set, (like your Dad), or we don't see them at all, and only see the tracks in our tracks on our way out. So are you asking "how many sets per cat put down?" or "how many sets per cat called in"? There are two very different answers, (for us anyway). As far as how far do you track it until you set up....it depends on many things. Mostly (for us anyway), I'll follow tracks for awhile and try to "head it off at the pass" to find a spot that I want to set up. I have a spot that I've called in several bobcats, and there seems to be tracks there every time, so I still set up there. Lots of tracks, but no cats so far this season.
Good hunting to you!