I've had success with both the block and the granular BB2. As far as the block, the hogs where I'm at won't leave until it's gone when they find it so I only throw it inside a feeder pen. I have quite a few pics of deer munching on it but the rodents (coons, squirrels, mice, etc) get their fair share too. I've mixed the granular in feeders with corn, about 1:5 ratio, as well as pouring it directly on the ground. A couple of times while hunting, I've poured about a 5' strip of granular a couple feet from a 5' strip of just corn and the BB2 was gone well before the corn. I've never tried the Black Magic, might have to experiment with some. Hope the blocks work for you, keep us posted!