Getting Better Pictures From Your Nikon D90

I'm a professional PGA Photographer out here on the West Coast. I've been photographing for over 40 years. A few years ago, I bought a Nikon D90, after over 50,000 photos, I've came up with the conclusion that Manual Focus and Manual Shooting is the best. Program, A, S, Landscape, are all good, but, they are not consistence all the time. The same with Auto Focus, I can not tell you how many times I'd line up a photo of a Pro Golfer and my Auto Focus moves in and out of focus, and I miss the shot. So, now I use the Auto Focus to start and as soon as it's sharp, I reach over and turn my lever back to Manual for the shot and any refinement focus as well. Manual exposure is needed as well, as the Program modes will not be consistence from shot to shot. I meter the subject, take a test shot and change my setting manually. That way the exposure is the same. Hope this helps