As the title says what's the difference between Sampletank 4 CS and the paid Sampletank 4? Other than the number of instruments and loops of course. Web search comes up empty and so does a search on the IK site. There's no explanation on the product page either. The 'compare versions' pdf only lists the instruments for 3 versions and ST CS is left off.
I know there are functionality differences between Amplitube CS and paid for Amplitube so it stands to reason there are differences between the Sampletank versions as well.