I am using ArcMap 10.2 on Win 7 SP1. When I use the SMIF-Tool for creating a mapbook at a fixed scale it seems to have an issue with overlapping the bounding areas correctly in order to get a proper connection to the following map. In the example I have a DIN A4-Layout (297 x 210 mm, Portrait) and I have these settings: Given the track I get these results: Within the North-South direction the overlapping works quite fine, but when it comes to West-East, connection parts of the following map are missing because ArcMap starts to rotate the data frame within the process of Data Driven Pages. And once you start taking the value of "length along the line" for "length perpendicular to the line" it must get screwy because you still want to populate a regular DIN A4-Layout having 180 mm usable width with now 260 mm "length along the line". So, therefore there has to be a missing part of approx. 4 cm on each side of the A4-page. My usual workaround at this point is: instead of creating a SMIF use the Grid Index Feature Tool (GIF) based on any given line feature. Within this tool the rectangles have no rotation and they keep in a constant portrait position that is useful for exporting maps within the A4-Layout. The only thing is that I have to bring them in order manually by drag&drop, so I lose quite a bit of automation functionality (sometimes 1000+ rectangles). No missing parts here. My question: is there any way either to get that SMIF-Tool working properly or to get the GIF-Tool working without manually draging or anything else?