Manual curation of electrophysiology spike sorted units is laborious and difficult to reproduce. See this talk at the annual Neuropixels course about quality control. There are tools to help.
Bombcell Bombcell is a powerful toolbox that addresses this problem, evaluating the quality of recorded units and extracting essential electrophysiological properties. Bombcell can replace manual curation or can be used as a tool to aid manual curation.