Comparison of V1 field measurements (gray) and MHD model (solid line) for simulation parameters α = 42°, β = 0°, and ISMF strength 2.2   μG that correspond to the best solution obtained in Fig. 1 but with SW speed  ~466 km s^-1 and Ulysses-based He parameters. We also show MHD model (black dashed) for simulation parameters α = 45°, β = 0°, and ISMF strength 3.0   μG that correspond to the IBEX-based He parameters (McComas et al. 2012).