Google seems to have toned down how well an exact match title performs in search, no longer does having the exact title matching a search query vault that page to the front of the line. SO, in wanting to do some spring cleaning and tweaking to maximize exposure and number of visitors from search I want to know if it's safe to make minor changes to existing page titles, I see room for improvement.
GWT - some pages are reporting 10's of thousands of impressions with a 1% CTR, I can't help but think that the CTR could be improved.
Accuracy - I don't intend to make the slightly altered titles any less accurate
Honesty - I don't intend to make misleading changes.
Effectiveness - GWT provides a list of keywords it believes my site to be about, I would employ more of these words in my titles and fewer off topic words.
Over optimising - I don't plan on re-writing all of my titles or even changing more than one or two words per title, perhaps just changing the order of the words even to make them more clickable.
Before I pick a small subset of pages to test with I'd like to know... would you do it? Would you avoid it? Have you done this already(recently) and if so what were the results?