Influence of the magnetic turbulent pressure α_P on super-A solutions obtained with our fiducial set. Top left: JED parameter space ξ(μ). Top right: magnetic lever arm λ as function of ξ. The dotted lines correspond to λ = a[1 + 1/(2ξ)] with a = 0.9 and a = 0.5. Bottom left: fraction b of the released accretion power transferred to the two jets as function of the magnetic surface rotation ω anchored at a radius r_o. Bottom right: maximum cylindrical radius r_t/r_o reached before recollimation, as function of λ. The dotted line is a fit r_t/r_o = 1.08λ^0.526.