Eh....like I said, case-by-case. They can be better qualitative tools than qualitative, but when your method will fail is in a big coastal with potent deformation areas....having the mid levels be a prolific driver of snowfall is an entirely different ballgame because the models greatly struggle with mid level dynamics....you will see the vast majority of QPF focused with the low level deformation when the heaviest amounts actually fall near the modeled NW gradient, underneath the best mid level CSI.