In the last gig's case, I think it was an issue with the monitors. The director of the group admitted that the monitors were weak because the signal to the monitors was mixed with the PA out...splitting the signal. He's now bought a better mixer, with the ability to split signals. let's see if that fixes the problem with THAT band.
But, by and large, congas (and the need to have them equalized with sufficient treble to hear baqueteo, finger work, heel toe, slap nuances, etc) are underappreciated in miking situations. Ignorance on the part of non-congueros...for them...it's just all about the "Pack, TUM, TUM...Pack, Tum Tum" and nothing else.
For my technique, here are two videos of my playing. If anybody can notice something I'm not noticing, please post here.
http://www.youtube.com/watch?v=WwymCjEoedAhttp://www.youtube.com/watch?v=jlOrsDS_h9A