Alright thanks for your input. Yes I plan to have them low quality, and blast them with xrumer. The content will be referenced to a main keyword per blog. So say I am running a cooking site my blogs could target different words.

Blog1 - Cooking Books
Blog2 - Cooking Tutorials
Blog3 - Cooking Recipes
Blog4 - BBQ
Blog5 - Cooking Presentation

ect ect. Yes my example is kind of dumb lol. I plan to set them up, maybe put a few blog posts (maybe auto leech) on each really targeting the main keywords of each with nice link backs to the main site. I don't plan on spending really anytime on them after they are set up. So basically maybe 20-30mins/blog.

Glad for your feedback, let me know how it goes long term. I will give it a test some time soon.