For this example let's just say you're only going to build 20 links. All will be contextual and using unique/quality content. From high DA sites. Would you rather: A. Build 10 tier 1 links and build 10 tier 2 to strengthen them(not sure how much it would help PA) B. Build 20 tier 1 links (PA would be zero for sure) Would it be better to have 10 fewer links but 10 stronger via the tier 2's? If say in a month you wanted to build 10 more new links, which would you choose: Tier 3 Tier 2 Tier 1 Seems like the tiered is the way to go. Each link gets strengthen and are aged compared to fresh tier 1 all the time.