Has anyone that upgraded from the D200 to the D300 experienced a BIg learning curve? Last night was the first time that I really got to try out the D300, and I'm not too happy with the results. Most of the photo's came out soft. I'm GUESSING it MUST me ME, because the same lens' used with my D200 have no issues. I have made one change with the D300. I'm trying to shoot AF-C, instead of AF-S. And I'm using Dynamic instead of Single Point. Can THIS make that much of a difference?