I went with 2010-2011 and 2020-2021 as my two primary ENSO analogs due to placement of max anomalies, but the mistake I made was not adhering more closely to 2010-2011 due to how well coupled this la nina is, as opposed to last year's no-show ordeal. I needed to incorporate strength more. Big oversight on my part in November...that would have alleviated the main flaw in my forecast, which was reversing the PNA from December to January. As far as the warm December goes, the record RNA was just so massive and that is extremely difficult to foresee. I'm happy with how I have handled the polar domain, though I think the lower AK heights also persisted a bit longer into December than I had envisioned, which further augmented the warmth that I missed.