Which bubble king skimmer to get?

[stellarfly]

Looking for a vote between two bubble king skimmers.

My future tank build will be about 120 gallons with about 40g sump. It will be a mixed reef with a moderate bio load. I am for sure getting a bubble king so that is set, but I'm torn between getting either the double cone 150 or double cone 180. I've read on reef central that both would work as bubble king's tend to be under rated for what the specs say. I just don't want to get a skimmer that will be either too under powered or way too big. I'm leaning towards the 180 but just wanna make sure that its right for the job. Jeremy on reef central said this would be the biggest skimmer he would put on a tank of this size. I would like to have a consistent skim and not worry about an oversized skimmer performing poorly. Let me know your thoughts.