To respond to Muganda, the constitution is not important though a largely balanced group (age, sex and background) would help. I have been in a guy's only chama and we were very much focused and objective, and I have heard similar stories with my women friends.
Could you point me to where I can get hold of the 'african women' painting in your post? - the painting is really good!
Just like in F1, it's all in the telemetry