P/T E[T] = 29.6 min
Optimal = 29.4 min
Highest P = 32.3 · Shortest T = 37.1
Fan #1 and #2 share one 20 min swap — together they carry mass 0.45; the optimal policy treats that shared procedure as one act
Full expandable tree for every scenario: results/comparison/recovery/decision-tree.html