Zivush - 7:22 am on Nov 13, 2012 (gmt 0)

I have this project that I am still hesitating whether should we kick it off or not.
There are 300 pages on the site that long time need a good editing – English proof reading, adding more information, headings change, and design/layout improvement.
However, ~ 50% are ranked very high on Google and Bing.
The 300 pages see 150k visits a month, while the total traffic potential is ~ 600k. 50%, 150 of these pages, see 125k visits and the rest see 25k (but these have a traffic potential of ~100k)
Above all, many of these pages where copied/scrapped thousands of times in one way or another all around the web. Making some modification could confuse Google algo so it misses the originality.

So, the question is – would anyone, after Panda, takes the risk of making improvement and lose/gain ranking.
Note, it’s like catch 22, as my friend said to me earlier: would be funny if Google has now decided that web pages should be static, never changing so they can keep track. What a useful Internet they are engineering.