Values of the ratio between ordered kinetic energy and gravitational energy t = K_ord/ | W |  for selected sequences of differentially rotating models characterized by Ψ = 1,2,...,7 (from bottom to top) and χ in the range  [0,   χ_max] ; the remaning parameters are fixed at . The arrows mark the threshold values of χ for the moderate and rapid rotation regimes, illustrated in Fig. 9. For comparison, the dashed line represents the values of t for the sequence of Maclaurin oblate spheroids (with e < 0.92995; this eccentricity value corresponds to spheroids with maximum value of the rotation parameter χ_max = 0.11233).