richelectron - 7:53 pm on Aug 1, 2012 (gmt 0)
When I look at more analytics data against those dates in that other post I can actually see other correlations between the 2. So it looks like I may have lost ground through several algorithm updates including the May 26th 'Penguin Refresh' and June 25th 'Panda Refresh'
It is discouraging though, because my site really should be doing better in the serps than my competitor's broken and neglected site.
Anyway, I will be sure to post back here if I manage to recover my rankings, thanks again for the feedback.