There was a similar thread recently about 3 to 1 ratio heads.
As you know, I'm a big believer in low profile three blade heads like Woodsmans and VPA's, there are some others that I haven't tried yet.
Since I'm generally the guy tracking the pig to all hours(my own and others')through awful stuff I'm always happy to see three blade heads in guys' quivers. If it will give me ONE more drop of blood that's enough reason for me to use it and recommend it. After several hundred pig blood trails(and a lot of deer) I'm a firm believer in three blade heads.
By the way, two years ago, Bill Langer's son Ben killed three pigs with three shots using Woodsman Elites. He was 11 or 12 at the time and drawing under 40#, closer to 30 probably.(smaller hogs).
Like Terry said, it couldn't hurt to carry one Tusker for a really big boy, though. You sure put the hurt on deer with those:)
(I need to start keeping stats on the broadheads people use)