In addition to exploring the effect that longer simulation times can have on the behavior of the observed aggregates, it is natural to consider what would happen if the size of the simulation cell is modified beyond the default 40 3 explored in this work. In Fig. we demonstrate the impact box size can have on ⟨N agg ⟩ for mole ratio 0.0 at pH 3.9, mole ratio 0.67 at pH 3.9, mole ratio 1.22 at pH 4.3, and mole ratio 1.33 at pH 3.9. For the first two, we explore the box size effect over 10 000 DPD time units. For the latter we explore the behavior 40 000 DPD time units. For the mole ratio 0.0 at pH 3.9 system (Fig. ), simulation in both a 40 and 50 3 boxes result in cubic power law growth regimes at the end of the simulation. Here, the transition from a linear to cubic power law regime appears to occur at approximately the same region (marked by an arrow on the image). Whilst there is some difference between the reported ⟨N agg ⟩ over time, the results are broadly within error of each other. In Fig. &) we look at the shape and branching metrics for these two box sizes for the mole ratio 0.0 at pH 3.9 system. For both, the general morphologies reported are similar but there is a key difference in the reported behavior. The behavior of spheroid micelles is broadly the same in both box sizes. Rods can be observed transitioning into WLMs after a slightly longer period of time in the larger box. This is intuitive as the definition of WLM is set by the box size. As the box gets larger, rods can grow longer before their classification is updated. What is perhaps less intuitive is the behavior of the 2D and 3D extended structures. Larger, 3D extended, structures seem to be preferred over the 2D alternatives as the simulation box gets larger. We speculate that the origins of this behavior stem from spatial requirements to form the 3D extended systems. The increased proportion of 3D extended structures reported from the shape metrics in Fig. is accompanied by a significant increase in the degree of branching in the system and the larger box presents almost double the average number of branch points per micelles when compared to the smaller box. Examples of morphologies resulting from the two box sizes for the mole ratio 0.0 at pH 3.9 system are presented in Figs. and.