My tips:

• Using primes mostly, wide open. Trying to get as much ambient as possible. Organizers like to see all the effort that went into the lightning:

• Flash, diffused as much as possible: either by bouncing off a ceiling or by using a flash disc if ceilings too far away. Typical bounced flash shot looks like this:

• Sometimes I place 4 flashes and light the hall using them. The ~ISO200 shots can then be easily edited to look "painterly":

• Other times I find a nicely lit (by "practical light") spot and hunt around there, e.g.:

I do that once I get most of the standard shots.

• Know the dance. Salsa cubana is tricky (pair dances around in circles, lots of times the hands obscure the face). LA/NY is a lot easier to shoot. Predict dancer movements. Listen to music as well and anticipate crescendos, holds, etc. I've been taking same dance classes.

• I never had luck with continuous shooting. Even with 12 shots per second I missed a lot. Ended up with ton of unusable photos. I take a lot better ones, when I'm actively waiting for good one.

• I'm bad at composing. I have no idea how to take good moments and compose well at the same time. Open for suggestions.

• For the casual dancers, I'm going to wait for emotion expression, i.e.:

• For the professionals, emotion expression comes a lot less often, but they do a lot more photo friendly figures anyway:

• I'm actively avoiding shooting "best couples" only. I spend an hour and two specifically to get as much people coverage as possible.