I agree with the fixed blades. I use a 125gr 3-blade muzzy on my pigs. Haven't had any problems with pentration with them out of my old bow set at 55lbs.

I aim for the heart... which is low and tight to the shoulder. (this pig in the picture ran/rolled only 40-50 yards after the shot) If you take a quartering away shot, make sure you are aiming so that the arrow exits low and forward. A high shot and/or a shot even a tiny bit far back is bad news on a hog.