I tried to find a blog series that I read several years ago, written by a physics Ph.D-student (I think) explaining various aspects of TT in a scientific manner. For example, whether to combine hard blades with soft, medium or hard rubbers; or why Chinese rubbers result in the highest amount of top-end spin, and so on. But for the life of me, I can't find it again.
In that series, he stipulated that Chinese rubbers have a greater proportion of damaged polymers acting as 'fingers' (what makes them tacky/sticky) and grabbing onto the tiny indentations of TT balls, allowing for greater control when generating spin.
Perhaps someone recognizes what I am talking about and could post the link here, provided it still exists?