Have there been any changes made to the P4s hull since it was first introduced in 2003? I have had two Classics, a 98 and a 00 and the difference in both hulls were remarkable – the 00 flat out blew the 98 away. Since Id love to get into a P4, Im wondering if there are certain years that might be “better” than others hull-wise. What about the top cap – any changes there?Thanks for the info.