I do recommend some of you to only choose 3 url from each blog which is different PR value each to avoid abuse and raise the flag.
This is how I do:
1) each blog I only pick up 3 url e.g PR4, PR2, PR0...etc
2) Only 10 blog for one domain, mean that 1 day I only manage to get 30 backlinks for 1 of my domain/page.
3) I'm doing the same for my other domain.
Is there better suggestion and please share of your best method. What I try to tell is that I really want this tool could stand longer and don't want if the blogengine developer implement captcha that could force us doing it manually. That why I hate to manually commenting on drupal blog, joomla etc..wordpress it suck for spammer because all your comment totally going to moderate.
Nice example of stupid blogengine webmaster that erase all his post (although he has lots of good PR 4 and 3 blog post each) because of could not handle spam comment was blog.enginefour.com.. it such a waste and I don't want any my links end up like that! There doesn't care above their PR and such things maybe because it just their personal opinion blog..