I personally like the new-school geometry of the blue pig.
I personally like the new-school geometry of the blue pig. It climbs better than the 456 (steeper seat angle keeping weight forward) and because the effective top tube length is a little longer it's designed to use smaller stems than the 456 which makes it responsive. As long as you do this and fit a smaller stem, amazing how many people don't! I agree with the magazine reviews that it works well in all conditions (on my Blue Pig), the steep seat angle making it climb well. It's also good at low speed, north shore etc, high speeds, steep crazy stuff, steps, technical really steep climbs. It can turn on a dime too which surprised me, great at switch backs. It just does everything well. A great bike if you challenge yourself on challenging terrain.
Downside: it just makes it too easy on normal xc terrain though, and beats you up a little more than less stiff but more springy machines like the cotic soul. Planning on building up another xc bike for the local terrain around where I live, keeping the pig for the peak district.
The pig is at its best when riding with buddies that have long travel full suss machines, where you challenge yourself to beat them on tough terrain, and more often than not, do so.
The slack angle works well on long rides too, it acts as your friend, meaning you don't need to concentrate so much for a given speed, but still have an involved ride, because it's a hardtail. And every nutter bike needs a big tyre, so the ride often is not that bad when running a 235 which it has plenty of room for. Horses for courses.
Other downside: knees hurting a little, perhaps my seat is too far forward over what I was used to. I heard you get used to it, time will tell.