I've been riding the Custom Xs stiffer brother the T7 for about 70 days, in a 159 (I'm only about 165 lb) and loved it. Just moved up to a Virus Avalanche FLP AFT and I see the light now. It's got a more boardercross oriented shape, meaning a 160 cm board has a 140 cm+ effective edge, instead of in the 120s.
I was out carving on it today and it's about as good as it can get for carving with softboots methinks.
Had it out in a couple feet of powder a week and a half ago and it felt at least as good if not better than my T7 159 in the powder.
They're custom made, NOT cheap, but they can make them to any width you want for an extra fee.
If you're really REALLY serious about freeriding in all conditions, I've been thrilled with mine so far. It's taking my riding to a new level.