Introductory Definitions.- Managing Reactive Loads.- Mutually Counteractive Loads at High Speed.- Subtle and Obscure Loading Sources.- Interface Sliding, Loading, and Wear.- Elastic Deformation and Microslip Issues.- Assembly Over Mobile Interfaces.- Proper Allocation of Functions.- Gearing Design for High Power Density.- High Power/Torque-Density Devices.- Hydraulic Power Density.- Megawatt-scale Fluid Power.- Energy Retrieval, Storage, and Release.- Multi-Attribute Designs