It seems to me that the differences between old PJ (circa WHL) and new PJ (post-Flip) are definitely the spots he skates now, his hammer-esque tricks that he does now (less lines), and how he gives the impression of an overall lack of fun/emotion in his skating i.e. no more pressure flips, no more lines where its 3 or 4 flat ground tricks followed by a simple crook. I don't know it just seems it started this downward slide after his Flip part came out.