If I were in the market for an aggressive fork right now, it would be a Marzocchi 55CR – for £449 at Merlin you get compression damping, an air spring and a bombproof warranty too.
The Pitch is an aggressive frame that deserves an aggro fork to get the best out of it. Sektors are really only Pike-lite in terms of stiffness (I have three pairs of Pikes and a set of Revelations, which share the Sektor chassis), you might as well go the whole hog given that the Pitch is warrantied for 160mm forks.
FWIW, I swapped the Pikes on my Wool Fridge for Revelations and although I gained 10mm of travel, I lost an appreciable amount of front end confidence. I swapped again to Wotans which really brought the bike alive, so I can wholeheartedly recommend going for a bigger fork.