Scene Optimizer helps with this! There's a tab which shows an overview of all SubD meshes and their polycounts. It can also help with texture resolutions.You're probably right. I did notice recently how some random asset had been clicked to render at subd level 5. I rarely ever change settings but maybe as I drag my mouse over things when I'm half asleep doing stuff. I'll just go thru all the settinga to double check them.