I was only in Punta de Mita twice and I walked down to La Lancha. All the breaks from town to La Lancha were ankle high and unsurfable (both times I was there was high tide). La Lancha might have gotten to chest on the set but basically waist. Guy that ran the water sports center at my resort has surfed that area his whole life. He said in the winter Burros (Donkey Point) is generally a bit bigger and his go to break.
edit: I was surfing on 12/21 and 12/23 if you want to look back at the buoy data.