Split-grade printing has been a life-saver for me. There is no way you can adequately print T400CN without split-grade.
The key feature of split-grade printing is the ability to adjust the "gamma" of the print. Typically, our major controls are brightness and contrast. That's it. But what do you do when you have a negative that just won't give you a snappy print without blowing out the highlights? That's very typical with a C41 based film. Split-grade printing gives me the ability to preserve the highlights and keep the midtones where they are supposed to be while giving myself the solid foot that i seek in a print.