I know its not a factory cover,
IBOATS.com has an exact fit cover that you can order with our without the platform coverage. Made by Westland in just about every MC factory color. Also has the ratchet strap option. Fits like a glove and is top quality.
CURRENT: 2008 SANTE 210
2000 Mastercraft Xstar
2004,2005 Ski Centurion Avalanche C4
2003, Ski Centurion Cyclone
99,2000,2001, 2002 Ski Centurion Elite V/Hurricane/lightning
88 2001 Nautique