SALT2 x₁ histogram for the 56 HVF SNe compared to the full 190 low-bias sample. The solid black curve presents the median HVF SN density, and the dotted black curve indicates the density of the full 210 spectra. We performed no detection efficiency scaling upon the x₁ parameter distribution. The individual blue curves (dark for HVF and pale for the full sample) correspond to 1000 iterations of sampling the x₁ values from their individual measurement distributions and recalculating these density functions.