To answer your question how does a2a help me build my SFI business I would say it gives you more people that you can network with and they can help answer any questions you may have if you cant get hold of your Sponsor and co-sponsor if you have one. Also if you have a2a people local to you you could meet up and this would show that SFI is a real business and that there are other people who are building their own SFI businesses.