HI I have 36 web 2.0 properties with mixed and spun content and of course backlinks to my website. So far only 2 of those properties are indexed. My plan is to blast these web 2.0 properties with amr then blast amr links with xrumer profiles and then blast xrumer profiles with scrapebox links. I'm pretty sure that this way my web 2.0 properties would get indexed or at least crawled in no time. However im a bit worried that it may look "unnatural" to the search engines if my website received 36 backlinks in 1 day and then not receive any backlinks. So alternative way would be to be to ping and bookmark 3 or 4 web 2.0 properties every day so that backlinks would appear gradually. Which way do you think would be safer?