I've called in a couple with it, and have'nt used it many times(5 or 6). I should probably use it more because I often see scat with hog hair in it.
Hogs are thick here, but I've only called in a couple of lone boars, and like you said, they came in to the rabbit dis.
The pig sounds I used were Foxpro sounds. I have'nt tried the grown hog distress.