The first section of this paper is a discussion of twenty four practical considerations of designing hydrostatic and hydraulic drives. It is intended to cover some of the more common mistakes made in circuit design. It includes suggestions on how to avoid the problems and in some cases specific examples of components that are available that could be considered.The second section is a “checklist” of questions that are designed to help the designer recognize the potential problem and probe for the solutions. Many times, simply recognizing the problem automatically brings forth a solution. That's the idea behing this paper.