I didn’t read all the posts but if you haven’t tried a small piece of slim Jim as bait I would highly recommend that. That always gets the stubborn trap shy rats I have to deal with after customers have attempted to ‘handle it’ on their own. If you use the T-Rex or catchmaster ez set traps there is a little peg that comes down off the top inside of the trap you can impail the slim Jim onto forcing the rat to molest the trap enough to trigger it, no free lunch like they can get with peanut butter.
cut a few tiny pieces of the slim Jim and leave a bread crumb trail to the trap. Do it just before dark.
cut a few tiny pieces of the slim Jim and leave a bread crumb trail to the trap. Do it just before dark.