Well, I weight almost 200 pounds, and I thought PE's were really stiff. They will still be a fine park ski just don't expect much from buttering. I don't know, I actually really hate PE's. Its funny, they were the first pair of twins i really wanted, based soley on the original graphic. My dad's friend got some off steep and cheap though and i tried them, they are actually the only ski I've ever tried that I just straight did not like. Like, I prefer K2 Recons and shit to them, the flex pattern just seems lifeless to me idk. If I were you I would sell the PE's to a friend or something, give them a good price but not an awesome one, and then you could use that money to buy some old park skis off someone on here, and still use your own money to buy the pow skis.
Newschoolers BST is fucking amazing. A couple months ago I sold a jacket I didn't like that much for a good price to someone that they were happy about, I didn't rip them off or anything, but got what the jacket was worth. I then bought a sick almost brand new Special Blend jacket for like $40 fucking dollars, so now I have a sick new jacket and a pretty decent profit, enough to buy 1/8 of ganja at least.