[en] The 1/2[411] ground state band (gsb) of the nucleus ¹⁶⁹Tm provides a good example of a rotational band near the strong-coupling (pure K) limit of the particle-rotor model. Although it has been much studied, and has been utilised as a probe nucleus to calibrate the TF for rare-earth ions in Fe and Gd hosts, there has been no precise, independent measurement of the g-factors above spin 7/2⁺. States of interest in the gsb of ¹⁶⁹Tm were Coulomb excited up to the 21/2⁺ state using beams of 170, 190 and 220 MeV ⁵⁸Ni from the ANU 14UD Pelletron Accelerator. In all measurements the recoil-implanted Tm nuclei traversed the same 5.3 mg/cm² thick Gd foil (cooled to ∼90 K) and stopped in a backing layer of Cu. The Gd foils were polarized perpendicular to the γ-ray detection plane by a small electromagnet which produced an external magnetic field of 0.08 T. The direction of the polarizing field was automatically reversed approximately every 15 minutes. Precession measurements for the particle-γ angular distributions were measured using 2 pairs of HP Ge detectors placed at ±60 deg C and ±120 deg C to the beam direction. Backscattered ⁵⁸Ni ions were detected in coincidence with the de-exciting γ-rays from excited states using an annular silicon surface barrier counter subtending an angular range from 150 deg C to 166 deg C. Fed precessions of the most strongly populated states were measured to a relative precision of better than 2%. Unperturbed particle-γ-ray angular distributions were determined at all three beam energies. The detector pair in the backward quadrant remained at -120 deg C to serve as monitors while the forward detectors were placed, in turn at various angles. The data are being analysed to determine the relative g-factors of the individual states in the gsb, independent of the TF calibration. Our data will also enable critical evaluation of the velocity dependence of the TF, without relying on model-based g-factors