**3. Computational resolution**

We provide outputs from a series of *ab initio* DFT calculations on two SC compounds with substantially different experimentally determined Tc values (*i.e.* MgB2 Tc ~ 39.5 K; B-doped diamond Tc ~ 4.0–7.5 K depending on level of doping) [31–33]. For both compounds, when the value of k-grid is varied in the examples below, all other parameters are maintained the same for all calculations. A range of k-grid values are exemplified in order to highlight differences in sensitivity of EBS and PD outputs for SC compounds. These examples highlight the key role computational resolution can play with interpretation of SC properties.
