So, I guess there is no difference is there...
You see, I am discussing this as a dance concept - I don't think salsa dancing has a 'lock' on things like lead and follow and connection concepts (they may feel different but they are stilkl there)... I think that salsa, while it has many expressions peculiar to the 'look', still conforms to the basic precepts of good dance.
A good point was brought up about 'shines', tho. There certainly are, in ballroom - they're written in to the syllabus, actually. In ballroom Latin, for instance, every dance has at least one figure that has either call-and-response or mirror dancing while not connected. One example is 'three threes' in rhumba. And of course, in open dancing, things like that are almost required to make the dance look good.... and in open, the concept of 'shine' is there. It's called 'improvisation'...
There is a concurrent thread asking wheter synchronius salsa performances are embodying the 'salsa spirit'. This seems to be a recurring theme - that Salsa expression has very definite borders and 'rules'. Perhaps this is what P is talking about. The mechanics are there (and a good dancer brings in elements from ALL styles of dance into their dancing) but perhaps salsa dancers on this thread think that the 'salsa spirit' is somehow diluted if we talk about crftsmanship and balance, center and timing? I sort of don't see why it is so agita-provoking to discuss salsa as anything other than the 'mystically handed down from Cubans as the one pure dance' concept that I get from these threads sometimes.