sallam,
Thank you so much for your detailed post
I have 2007 and 2003 papers I don’t have 2010 exams papers so it is difficult for me now to figure it out the difference.

I want to support your points so what can I do for it???/
Furthermore I am willing to appear for AC & SA 2013 exam can we discuss regarding books, preparation, syllabus, paper pattern etc

In the last I will be very thankful to you if you send me past papers (2010 and all years) what you have .