Blasting web20 with SB still viable now?

in the past, my link campeign was to build my tier 1 backlinks with web20 and blasted them with SB AA list that i found here on bhw. It worked great and i was climbing the rankings and then penguin happened and all my sites got slapped. I did use otehr methods and purchased some fiverrs so i am not 100percent sure which backlinking method i used that got me slapped by google.

So i wanna start my web20 campaign again and build my 3rd teir with sb and bookmarks. To be safe, my web20 is all unique content with KW density at 1-2percent and 1-2 links pointing to my money site.

any suggestions and feedback is greatly appreciated.