It was the first big blizzard in 10 years in my area. Total of 9" of snow with drifts from the wind. I have a 2016 x738 with JD54" blade. 9" blade extensions to make it a 72" blade. Six suitcase weights on back with a click-n-go bracket.
So this is the first real test since owning the machine. The results of the x738 that it could barely handle that much snow. It got stuck several times. I even had to get the snow blower out to make a wide path because the x738 could not make it up the hill where it drifted.
A lot of people on here claim how wonderful it pushes in deep snow. I had to make several passes going forward and reverse where the snow drifted. My opinion is that it pushes snow great 8" or less. Anything close to 10" with drifts it can't really handle it.