How do you toss a rip and read 10:1 ratio??? I get that you think ratios might be higher deeper in the cold air, but a 10:1 ratio map is ALWAYS going to be wrong for some...no matter what an independent model outputs for qpf....it's just essentially a first guesstimate...
And I honestly think ratios don't do any better than 12:1 no matter where you are within the airmass...the DGZ is shallow with weak lift (omega)....