In some situations blind sets take a lot of maintenance as with high deer population areas. In the right situation blind sets are very productive, especially with lured sets close by. I normally wait till after the white tail rut before I set blinds. Tire tracks are killer, as are deer trails and small game trails.
I could see your points Gary. I guess I really noticed here where the deer were hitting one location, and the coyotes were taking another. 6-7 sets of tracks on top of each other a couple days after a snow really makes a guy think. I have a dozen or so already set up on drags which I think would help keep these type of locations producing.
I always seem to throw blind sets out for coons as I'm not going to be throwing down bait trying to catch them, and I try to get them before coyote sets. That being said I always notice I tend to pick up fox, coyotes and badgers on these trails as well. We tend to have pretty definitive deer/predator trails. Some locations on the high banks seem to see a lot of action.
The small game is a pretty big issue for me as it never fails I come upon what's left of the rabbits/squirrels after the hawks have had their way. I think I can negate the small game by simply running more sets. I can drop a blind set in the ground in a fraction of the time it takes to make a dirthole or even a well blended flat set.
Wetdog I've considered cabling in certain situations luckily there's not much pressure where I am currently. I was the only truck down a number of roads for 10 days at a time. I think I could count on my two hands the numbers of vehicles I saw setting this year on vacation. I've already got the drags made up for when it's almost too close to the road.
When you say "grooming" I assume you mean narrowing down the trails before you set them? Honestly I don't know what to expect as we have a number of trails burned down to the dirt in the grass and I've had some crazy catch percentages on blind sets, but I've also had some sets simply sit there with no action. Again I'm thinking if I really want to do it I'll likely have to increase the number of sets to keep up the catch.