Optimizing Pipeline Filters: Job Descriptions vs. LinkedIn Profiles

Hey guys, When building a pipeline in Clay, would you recommend leveraging a job description or opening as part of the filtering strategy? Or does that introduce too many variables and risk muddying the pipeline? Additionally, how can we best leverage target LinkedIn profiles (e.g., MPCs) as "lookalikes" to inform filters and create a clean, qualified pipeline? I want to maximize filter accuracy without overcomplicating the logic or reducing relevance.