Previous studies have used a sequence choice procedure to explore the cognitive representations and motor programming of forthcoming response sequences. The choice reaction times are applied to model the structures and processes underlying the choice. Although the Hierarchical Editor (HED) model by Rosenbaum et al. (1984) was fairly robust in previous experiments, a counterexample of the model was found. For this counterexample, he suggested a cancellation method with omit decoding of rejected subsequences. However, it is unclear that HED with cancellation was applied in what type of sequences. The author proposed a remaining processing resources model. This model can account successfully for the data. Also, the differences in depth perception between actual and virtual environments were discussed in the later part of this paper.