As expected, an increase in the thresholds for spotting results in slower fire propagation. For example, t15n3 only reaches 4 locations. In most cases, configurations with the same total threshold but with fewer neighbors propagate faster to the observation locations (e.g. t5n1 arrives faster than t5n2 at all locations). Similarly, configurations with the same number of neighbors and lower total thresholds also propagate faster (e.g. t5n2 propagates faster than t10n2). In simulations t3n5 and t5n5 the front arrives at the same time in all locations, suggesting that five neighbors is a high threshold for these simulations, such that the total threshold does not affect the results.