I've been tracking my main keywords since May 7, 2012. That's about 2.5 months now. I started the site and first blast on May 7, 2012 and was at #700. I saw my domain disappear between June 4 and June 20...Now I'm back in at #547. I've been doing extensive scrapebox blasts, and probably hurt my site in the beginning because I didn't know what I was doing. I've been slowing down and doing much more high quality blasts that last month or so. So I'm seeing some improve of about 200+ in the serps, from 700 to 547 and appear to be out of the sandbox finally. Should I keep blasting high quality SB blasts, how frequently should I blast? Do you think it's possible to eventually make it to Page 1 in Google?