At what point do AMR blasts become redundant?

So I have AMR, and a list of sites that I get about 200 +/- auto approve articles from. I have been blasting web 2.0's pretty heavy. Since every blast I do, I am making another backlink from the same 200 domains, at what point is it just not worthwhile doing anymore, and perhaps a big footprint to google?

For each web 2.0 I make, should I do a blast to it, and then scrapebox blast to those articles? After this, should I just leave it and move on to the next or would it be at all beneficial to do more AMR blasts? I'm thinking no, but I'm not sure.

Also, if I follow this backlinking procedure with all of my web 2.0's, then they will all have the same domains backlinking to them, and the same structure of backlinks.. If I got a manual review I really don't want to get that dreaded 'unnatural backlinks' shutdown...

Anyone that can shed some light on this?

Bump because I really want opinions on this.

I was wondering the exact same thing.

sent from my HTC Evo Shift