It’s certainly not an absolute rule, but full-page, static comps do very little to help our clients and stakeholders understand the complexities of responsive web design. We’re able to show only one moment in time through full-page comps, and any attempt at showing every potential moment, or at least multiple ones, is futile. The static nature of comps also hinders our ability to show design behaviors such as animation, transitions, transforms, hover effects, and more.