Replying to PE's in pow?

I know the PE's are great for all-mtn and park but how do they handle in pow, im heading out to copper in January and was wondering how they are for skiing steep/deep, pow and trees?
thanks -matt
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'Over time, most people experience life involving love, suffering, compassion and an unspeakable drive for something new...For me there's skiing, nothing more nothing less and it encompasses everything, everyday I'm out there.'
-Pep Fujas-