It is hard to give a product a score and then let that score stand for years. If you did that, and you started a project like this twenty years ago, the Mag AA would be a 20/20 even though it is clearly and definitely inferior to the products available now.
To help you make gear decisions, I am going to update my scores, approximately one year later. I have done this with the Sebenza, the Haiku, and just today the Leafstorm. Only the Leafstorm has had a score change, and I docked it a point, so it now scores a 13/20 on my scale. There are going to be things that get better scores and things that get worse scores. I have learned a lot since I started this site and the technology and steels have improved appreciably even in one year. If I am still around in five years, I'll do another update.
Keep your eyes peeled for score updates and an explanation of why the score has or hasn't changed.