Thanks for writing up your thoughts. The biggest threat is probably simply having bad luck. It’s one thing to try and predict whether we will have a favorable/unfavorable pattern. But trying to guess something as chaotic as snowfall is something else entirely. We could have average snowfall in a bad pattern. We could have below avergae snowfall in a good pattern. Etc, etc. Quite often whether we hit climo depends on whether one particular storm lines up at the right time. Like last year for example. I had about 20” of snow for the season, which is right around climo for me. But half of that came from one storm. Take away that storm and I’m left with a crappy, sub-climo winter. Give me the 12/9 storm (which I missed) and suddenly I have a 30” winter in the same middling pattern.
We need to have a workable pattern, but we also need to cash in one or two times when we do and that takes luck. I guess the better the pattern, the more opportunities we have to score and the less likely we are to whiff on all of them.