Accretion with heating, cooling, turbulence (Ma ~ 0.35), and e_rot = 0.3: mass PDF per bin of specific angular momentum l_z, for the cold phase (the hot phase has PDF analogous to Fig. 11, top). After three rapid Ṁ_• bursts, the PDF narrows on average from 20 Myr (solid) to 27 Myr (dashed) due to major collisions canceling positive and negative l_z. The action of collisions is periodically contrasted by fresh condensation, favoring a broader distribution.