Set up at least 3 ads per group and let google rotate them and show the one that gets the best click through rate. Track absolutely every action a visitor can take. Develop tools that calculate the ROI on every ad you have. If you do that you can't go wrong.
- Don't bid yourself into negative ROI - Don't set your daily budget too low (or you might miss some traffic) - Don't set your daily budget too high (or you might run out of cash) H