Can someone tell me if its mandatory to drip feed tier 2 and tier 3 ?? i want to build all my tier 1 (web 20,social bokmarks,article directories,etc) in about 10-15 days, dripped. After this i want to blast them with few thousands wikis and bookmarks. the tier 3 will be a lot of blog comments pointed to tier 2. like i said in the first sentence, my question is, do i need to also drip tier 2 and 3? thanks guys!!!!