Ernest T thank you for your detailed reply. I was beginning to wonder if anyone was going to help me!!! Thanks to your reply I will definitely be getting one of the 160 HP FX's.. Thank you again.
Here is a summary that may be easier to understand:
2005-2008 FX = 998cc (140 HP)
2005-2008 FX HO = 1052cc (160 HP)
2009-2010 FX = 1812cc (Estimated HP at 180-200, since Yamaha doesn't say for this engine)
2008-2010 SHO = supercharged 1812cc (200 + HP???, I've seen 211 HP listed, but don't know if this is accurate)
I should have also mentioned that the VX series 2005-present all run with the same 1052cc engine, but even though it is the same size (in cc) as the engine found on many earlier FX models it is not the same beast and has a different compression ratio and HP rating (confusing). To make things even more confusing Yamaha uses the same name for at least 3 different engines = MR-1. Anyhow the VX 1052cc engine generates around 110 HP versus 160 HP on the 1052cc engine that is on the FX HO. The VX models are also a little smaller and lighter than the FX series. If you ride the FX side by side with the VX, the VX tends to bounce through waves where the FX tends to plow through. Like a sports car (VX) compared to a family sedan (FX). You also get wetter on the VX.