Comparison of evolutionary models with different internal angular momentum coupling schemes (HY: hydrodynamical, SB: solid body, TS: Tayler-Spruit) and with (w) or without (w/o) MLT++ in a typical VMS model with initial mass of 315 M_⊙ and initial rotational velocity of 300 km s⁻¹ during main-sequence evolution from ZAMS to TAMS. Left: Hertzsprung-Russell diagram. For reference, the position of R136a1 according to Brands et al. (2022) is indicated. The shaded region shows the formal uncertainty of the observations. Right: Stellar radius vs age. Numerical smoothing is included for visualisation purposes.