Don't know the year of your boat, but here's some pis and measurements from my former 91. Decal changed from the one in the post above either in 90 or 91.
"For every complex problem there is an answer that is clear, simple, and wrong." (Henry Louis Mencken)
2005 X2 Viper Red, MCX, Acme 1285, PPass
(previous) 2001 X5, 1991 TriStar 190