Differential flux upper limits (95% C.L.) from SS 433 obtained with MAGIC (blue), H.E.S.S. (green) and a combination of both telescopes (red) assuming a power-law with a spectral index Γ = 2.7 for the differential gamma-ray flux. The predicted differential gamma-ray flux from Reynoso et al. (2008b) for precessional phases Ψ_pre ∈ [0.9, 0.1] in which absorption of VHE emission should be at its lower level is also displayed (dashed orange), together with the Crab Nebula flux, for reference (from Aleksić et al. 2012b).