Duplicate Domains on AA lists?

I'm blasting out to some of my web 2.0 properties and a lot of the AA lists I'm using have tons of duplicate domains on them.

The pages are all different, but there's 20-30+ on a single domain.

Should I cut down to just one URL per domain per site or will it have any positive effect for those pages to all have a link to my URL?

How many urls are you backlinking? If you are linking to a bunch of urls they are going to get spread out anyway.

Generally the only time I worry about duplicate domains and the quality of the urls I am posting to is when I backlink directly to one of my money sites. If I am linking to web 2.0 properties or other buffer sites I just load and go.

Tip: So that you don't post to those identical domains but different subpages one after another. Randomize your list, then split it into 20k chunks. Blast a 20k chunk a day.

If you have multiple websites rotate the websites and chunks so you can be sure each website is getting 20k a day and you are not posting to the same blog post twice or more in a day.