Stephen would have more information than me, since he's been using the stick for a while now. I spoke to him about it, and he said he absolutely loved it. I'm looking forward to trying it myself soon! It is indeed our lightest stick ever, which some players will appreciate. Only way to know for sure though is to try it out!
Malkin, like many pros, has tweaked his pattern over his career. I recall hearing that he once grabbed Derrick Pouliot's stick stick to get out of a slump, and that stick was a P88 curve. Scored two goals with it in the first game, so he probably switched to a P88 after that. His original pattern is what we have on file though, and that's a closed toe curve with not much rocker.