For the most part you won't be penalized for "over-tweaking" on your site. Keyword stuffing and hidden text were dealt with in the early 2000's. If you are targ

For the most part you won't be penalized for "over-tweaking" on your site. Keyword stuffing and hidden text were dealt with in the early 2000's. If you are targeting keywords in the page title, headers, and body of your site at a reasonable amount, you don't have to worry about "over-tweaking". You do have to worry about over the top link exchanges, buying links, selling links, and too much commercially targeted anchor text pointing at your site.