Did you happen to read my Cafe article
Doesn't really answer your question, but it does preface my main thought about kickers in general.
I value kickers that I can count on for between 6 - 10 points per game minimum. I love guys that can get 10+ each game, and they can be had if you find them early enough in the season. Kickers and defenses are somewhat under-rated by draft standards (and in most cases should be) because they are generally the hardest performers to predict. Kicker performance changes drastically every year, so it's best to find a guy who's trending to do well after a few weeks and go for him.
It is possible to trend which kickers might score more than others per week, and it wouldn't be terribly difficult to do. But in the long run, it's better to stay with someone you know can get consistent points every week.