Comparison of converged structures for early O-star models with no wind clumping and no X-rays (solid lines), with wind clumping but without X-rays (dashed lines), and with both wind clumping and X-rays (dashed-dotted lines); see text for details. Uppermost panel: velocity vs. scaled radius; lower two panels: Γ vs. velocity (upper) and scaled radius (lower). A clumping factor f_cl = 10, starting at v = 0.1v_∞, is assumed. See text.