I,m not surprised !-- only the true afficianados will understand that -- ALL salsa is Mambo-- but not ALL mambo is salsa .
They are eternally " tied " together . Both have afro Cuban roots, and the " Parent" to salsa is Mambo.

the primary causal effective change ?-- a much stronger jazz influence in many-- but not all --cases .

You should listen to Music by Fruko-- it will give you a more complete understanding of " Son " rhythms, and the Colombian influence on the genre .

There are world champ. held in Miami every yr ( also -- Salsa )

There are so many layers of music in this genre, hardly anything else comes close ( maybe swing ) PM me your address and I will mail you some music---- salsahoy2000@yahoo.com