The quasi-1D cylindrical monster shock for σ_× ∈ [5, 10, 20, 30, 40, 50] × 10³ with λ/R_× = 0.034. Left: a snapshot of sigma30k at t = 4.0 R_NS/c, showing the background and wave magnetic field B^ϕ, the wave electric field E^z, and the radial four-velocity Γv^r. A dashed black line shows the (R_NS/r) scaling of the background magnetic field. Right: the maximum Lorentz factor of the cylindrical monster shock as a function cσ_×/ωR_×. The black dashed line is a linear function with a fitted slope and intercept.