Source tier stops deciding grabs. Per resolution the policy carries a floor, a target and a penalty per gigabyte over, so a 20 GB WEB-DL beats a 60 GB remux while the remux keeps a score and stays eligible. Below the floor is a hard filter rather than a low score: unbounded "smaller is better" selects a 3 GB 4K encode that looks like mud. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>