I use cameras for scouting, I can set half a dozen cameras watching locations vs making useless sets. I’ll set crossroads and field corners if I can find tracks. Other than that I’ll set out cameras to watch.
If you have small thicker pines and a 2 track in the middle of them, set it. At least 2 sets on opposite sides of the road. I’d make flat sets with nothing but a coyote gland lure. If you wanted to add bait, I’d just punch a small hole with the driver and cover it with grass or needles after putting a little bait down the hole.
My best set in the “open” or fields is a flat set and then add a sprig of broomsedge as backing. It stands out like a sore thumb and they have to check it or mark it. I use a gland lure in the broomsedge and urine about a foot away.
The main problem I run into is bobcats clogging up the sets. I could actually find a coyote track and set and still catch a bobcat
I have the same issues with dirt holes. I tend to put those in more open areas as well. Coyotes don’t seem to like backing they can’t see through or over. My cameras have showed me a coyote come through twice and would circle the dirt hole but never commit. I went a put a set exactly when I saw it step on camera which was a good 3ft away. The next time it came through it got caught.
You say you’re new to this so probably the best advice I can give is make your sets and leave them alone. No tweaking, no adding bait/lure, no nothing. I ride and check…I don’t get out and look and don’t “check out” anything. I don’t care if it rains or not, leave the sets alone unless they’re exposed. Also when using lure, a little goes a long way. The only time I mess with a set is when it’s time to pull and move on to the next property.