The paper formulates control targets for these channels using only classical Navier-Stokes quantities: vorticity, strain, positive stretching, enstrophy, dissipation, filtered support, component structure, and threshold weights. Fragmentation is treated as positive stretching distributed across multiple moving, reconnecting, or intermittently active components. Scale-local visibility is treated as positive stretching that appears only after filtering or scale decomposition. Complement stretching is treated as positive stretching outside a chosen high-vorticity mask, near a threshold band, or inside the complement of a smooth threshold weight. The main target is to show that the combined remaining ordinary-channel contribution is bounded by dissipation and lower-order enstrophy, either pointwise or in a subinterval-stable integrated form. The paper emphasizes that integrated estimates must control every intermediate time, not merely a full interval average. It also requires no double-counting among overlapping channels and a positive dissipation margin after coherent-channel control, remaining ordinary-channel control, and residual pathological-channel control are all included. Paper 150N does not prove unconditional Navier-Stokes regularity. Instead, it completes the ordinary-channel bridge map at the theorem-target level. Its conclusion is conditional: fragmentation, scale-locality, and complement stretching must either pay cost, become lower-order, transition to another named channel, or become residual pathology. The paper also identifies key failure modes, including reconnection without gradient cost, divergent scale budgets, nonsummable threshold flicker, margin exhaustion, hidden integrated spikes, and numerical overinterpretation. These failure modes define the next analytic tasks for residual pathological refinement, coefficient recovery, and final bridge assembly.