Scraped content from Clickbank does not work too well because the description are for affiliates mainly.

The best thing I have found is to manually make a fatty style database of the products in your niche with good description etc.

You can setup different Clickbank ID's for your tin, silver and gold sites and use the feed in Fatbomb, Blogbomb or ZZ.

This might be a good project to share, if everybody did their niche and shared it??

Noel