I have searched thrugh many posts in this forum on this subject, but none seem to fit my problem. I do mostly scores of large works usually including one or more vocal staves in each system. Occasionally, I work with piano reductions of orchestral scores (which usually also have one or more vocal staves). I invariably find it very difficult to get the pages to look nice throughout the score. I have searched the documentation to find the correct settings, but many times I've had to guess at which ones I need to adjust. Many times, the settings are universal and any correction I make to adjust the page I'm working on just makes the other pages unpresentable.
The most common problem I have is space between staves and space between systems. Since these settings seem to be universal throughout the entire score, I can't get one page to look right without screwing up other pages.
Am I not selecting the proper settings? For space between staves, I have been using the Staff Properties dialog -> Extra space above staff. For the space between system, I have been using the Style -> General -> Page -> Min System Distance and Max System Distance (although I'm never sure which one I need to adjust). No matter what I do, I always seem to end up with some (if not all) pages (A4) having about 4 inches of blank space at the bottom.