Thank you both of you for the replies.
I try to report as I find them, but will be even more vigilant now about it.
As for Rebecca's questions: It's a algorithmic bad ranking penalty, still call it a penalty since it's penalizing us and reason I think it's penguin is the site in question has traffic patterns that best fit a site suffering from panda and penguin issues. Panda is part of the core algo and hasn't recovered from a single keyword and it's synonyms ranking better than page 5. Penguin is the only algo left that corresponds to the traffic being lost as far back as April 2012. Other reason I say it's penguin is the client's backlink profile is horrid, over 20% follow links are that keyword or synonym anchor text to crap sites, if that's not the trigger for the penguin issue then I'm getting results from doing the wrong things.
Both our redesign and link cleanup have directly increased keyword ranking however every increase that happens isn't passed page 5, I've seen it one page 4 before but only for a day, nothing longer. So it seems to be able to rank higher but is kicked back almost right away faster than it increased. Really seems like it's being " adjusted " after going passed page 5.