[font color=\'#000000\']I've just started playing with the blending techniques, but so far I like what I've been getting with my work. I like split ND filters, but where I photograph there is usually something vertical (e.g. a tree or mountain) which I really would rather not have in the filtered area. The blending lets you avoid those problems.
However, no one so far has mentioned what seems to me to be the best advantage of the split ND filters. If my wife and I set up for landscapes in an area with people, I set up with my D60 on a tripod, futz with my split ND filter, and people leave me alone. My wife sets up with her D30 and a tripod, but doesn't have the filter holder on the front to futz with, and people keep asking her to take their pictures with their cameras (she's about ready to put up a sign offering the service for $5 a shot). So, use a split ND filter, and people leave you alone to photograph. Either that, or I look mean when I'm out taking photos. :angry:[/font]