Woodworkers lack clear, practical guidance on when wood surfaces are ready for the next finish coat

Woodworkers repeatedly apply tung oil and other finishes without objective indicators of surface readiness, leading to wasted materials, poor finish quality, and inconsistent results. Current solutions rely on vague advice ("when it feels dry") or trial-and-error, forcing experienced and novice craftspeople to guess timing and risk ruining projects. This creates frustration, material waste, and failed finishes that require expensive refinishing.