Hi Norty, glad to see you over here (JimBoylan on the DJ forums).
Mamba Black has the music time line feature where you can load the MP3 that you are doing the show to and make sure the effects happen at the right tim, you can also go to any point in the MP3 and it will still be synced.
As you know I got rid of my MB and joined the Pango club, the Pango hardware is far better, smoother and vibrant than the MB kit.
I am waiting for my FB3 Evaluation kit, unfortunately Pango are still waiting for the boards from their manufacturer (they have been held up at customs). Hayden as told me I should get mine sometime next week.
I would advise going for the FB3 though, as music sync isn't as important in beam shows as it is in graphics.
Jim