[en] Coupled-channels analyses of both cross-sections and analysing powers data have been performed for low-lying states for ¹⁶0(p vector, p), ¹⁸0(p vector, p) at 0.8 GeV and ¹²C (p vector, p') obtained for an energy range between 398 MeV and 697 MeV to study the importance of the deformed Spin-orbit potential. The angular distributions of A_y are very well reproduced only with a full Thomas Spin-orbit potential. The calculations for ¹⁶0 and ¹⁸0 data have shown that the deformed Spin-orbit term has only minor effect on the inelastic angular distributions and for A_y these calculations strongly suggest that the central and the Spin-orbit deformations should be equal. On the other hand a different behavior is observed for ¹²C(p vector, p'): first the presence of the deformed Spin-orbit term is essential to reproduce not only analysing power data but also inelastic angular distributions and secondly, for all energies investigated the deformation of the Spin-orbit potential should be greater than that of the central potential