Does anyone know of any software that can spin an article based on spintax an X amount of times based on an X% unique rate?

Basically, I have an article in spantax that I want to spin let's say 20 versions, all 80% unique between themselves. I haven't had any luck finding something like this, TBS, Spinner chief ,etc.. only shows you how unique an article is compared to one other, I don't have the ability to generate articles that are all 80% unique between all the articles generated.