It would be useful to add an option to order the outputs of the SplitLine, SplitLineAtPoint, etc. geoprocesses based on the direction of the line being split (from the start point to the end point, or in the direction of the increasing measure values). Currently, if a line is being split into 5 sections, the output is usually in the ordered of: 1st section, and then some random order for the remaining sections.
Because of this, addition programming code has been added to the C# applications we've developed to properly order the split lines for use in subsequent analysis. Adding this option would significantly improve our applications performance.