Calling all SEO experts: question on multiple article submission?

I've bought an article submission software that needs me to manually submit my original articles to a list of article submission sites.

Is this good for SEO? because i know that search engine penalization occurs when theres duplication of content. I dont get penalised, but its the article submission site that gets it, so they prefer exclusive content to the ones that are widely distributed.

also, whats your take on content-spooler? its a script that scrambles your articles to make many version of it, that is unique, yet readable

Thanks for the time and input, greatly appreciated

and what do you