I have a 2009-110L xcite PE so obviously guess what I'll tell you

Have a look here
http://www.boardseekermag.com/windsurfing-equipment-tests/test-introduction.htmlIts for the 2008 120l freeride boards, but it will give you a rough idea - the xcites did change shape a fair bit from the 2008 to 2009, 2009 and 2010 are identical. The 2009 felt livelier to the 2008. The 2008 schlogged easier and the 2009 planed mariginally earlier (maybe its because its a PE), apart from that both did everything well and easily.
With your Fanatic and JP you currently must have a quiver of Powerbox fins - Going to Futura will introduce Tuttle box fins to your quiver - Maybe it won't matter to you but you should at least be aware.