The new molecular magnet bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY) is a strong-leg spin ladder with a quantum critical point at 3 T separating a low-field quantum-disordered phase from a high-field Tomonaga-Luttinger Liquid phase. Our original experiment was designed to map out the hitherto unexplored phase diagram of DIMPY. Detailed field and temperature scans show rich behaviour in relaxation and asymmetry. However, the interpretation of the data is hindered by the possible occurrence of level-crossing resonances from muons strongly coupled to part of the 2,3-dimethylpyridinium group as well as instrumental background. Here we wish to complete our experiment and hope to unambiguously identify the background contributions by performing a field scan at 20 K on DIMPY.