Sami. Some more information which you may or may not know. For the benifit of others. In the new Samba technique book there were some changes . One was on the way the absolute basic Samba was altered. In the old way, the distribution of weight on the second step of the Reverse Basic was changed. I believe it was altered because it encouraged a sideway movement which was incorrect.
Samba is still the hardest dance of all the dances because of its changing rhythms which can change from one bar to the next.