Here's a photo of one of my fluffy stock dogs working a sow with a cat gyp. Granted, the cat gyp is more "in your face", and the Aussie dog was a looser bay. Aussie dog wants to get to the head, and hold the attention there. The only bad thing about using a dog like this is her propensity to bring the pig to you. If it runs, she is trying to turn it around and bring it back to you. She got catchy a little while back and got in trouble for it. This put a kink in her baying at the hog for a bit. She's back to baying again, and both she and the hog are as happy as larks.
All that fluff just looks out of place with a hog in the picture :O)
M
