I totally agree. many people just don't realize that GP's and pedo in many instances (majority) do much better than specialists. there seems to be so many out there that feel specializing will mean more income. Thats not the case. Especially with all the elective cosmetic procedures out there. Unless you're going into the specialty because you enjoy doing that particular part of dentistry, I would defer and do general dentistry for awhile until you find yourself.
By the way, why do so many talk about money in dental forum??? If you peruse the other forums such as the medical ones, it is rare that the topics involve money. That tells you a bit about the mindset of dental people -- what a shame. Stop talking about money and focus of dentistry, money will be there.
If you want to specialize right after dental school, you must absolutely do well in the 1st two yrs. The reason is that last two yrs. the clinical stuff is much easier to master. Therefore most people in dental school do well in the clinical years anyways. So if you are hoping to improve your class standing in the clinical years, it is unlikely. The reason is that the top guys in the class that did well in the 1st two yrs will have to do very poorly to drop down in the standings. This is unlikely. It is rare that if you have good mental capacity that your eye-hand coordination will be poor. (although there are few exceptions to this). I would venture to say that whatever the class standings are after the 1st two years, it will generally be the same till the end of dental school. In summary, if you want to specialize right out of dental school, you had better figure this out very soon after you start. otherwise its going to be tough to be competitive.
So if I had to choose what is more important, it is the GPA during the 1st two yrs. cause anyone with half decent eye hand coordination can cut a crown. So don't expect to move up in standing because of clinical grades -- cause everyone gets good clinical grades.