You make some assumptions that are not necessarily valid.
1: To syek1 :you did paul and angela backlinks which helped you after you had made some blasts. How do you know that it was not the previous blasts that were actually "activated"?
2. Sandbox exists!!We dont know that. Appart from that,there are many ways to avoid a potential sandbox.
-Dont spam 5000 websites this month and next month nothing. Keep an increasing trend.
- Differentiate your links. Blogs,comments, directories, articles ,social etc
-On site SEO!
-A very content is something that Google will always want to rank in their results anyway.
-Update as frequent as possible. Frequent is not copy paste and frequent is not 100 words per week.
3. Another assumption that i think keeps most people from actually developing what they want is the fear of the sandbox. How do you know that you will not get in sandbox anyway.
In any case, i prefer to blast what i want and get into sandbox than to do absolutely nothing and not be ranked anyway
There are certain possibilities for sandbox,backlinks etc.
1. You build absolutely no links and you dont rank anyway
2. You blast and you get into sandbox. When you get out you are quite strong
3. You build like 10 links per week and you will see 1st page after like 2-3 years.