Motor adaptation relies on explicit aiming strategies and
implicit recalibration, but their interaction and effects on
implicit skill learning remain debated. While these processes
were initially thought to combine linearly, recent research
challenges this view, though spatial and temporal dynamics
may have confounded these findings. Specifically, implicit
recalibration peaks at where individuals aim their movements,
and adaptation operates across multiple timescales, with both
stable and volatile components. To examine whether these
factors mask the true relationship between explicit strategies
and implicit recalibration, we conducted a visuomotor rotation
task that obtained independent measures of both processes
while accounting for spatial and temporal dynamics. After
controlling for task instruction clarity and spatial dynamics
(plan-based generalization), we found a strong but subadditive
relationship between explicit strategies and implicit
recalibration, with temporal dynamics showing minimal
influence. This sub-additivity may stem from methodological
imprecision or nonlinear interactions between processes.