I built the 5-Filter Hiring System after eating a six-month bad-hire cost for the third time in a single fiscal year. The pattern was always the same: a candidate who interviewed beautifully, who had a clean resume, who said the right things - and then could not do the job once they were on the truck. The problem wasn't them. It was that I was grading the wrong things.
What the filters actually measure
Each of the five filters scores one thing the old hiring process could not see:
- F1 - Speed. Did the candidate complete your application loop inside 48 hours? Real ones do, every time. People who slow-walk a 5-minute video task will slow-walk a 2 a.m. service call. The cost of a slow tech compounds; the cost of catching it at the application stage is zero.
- F2 - Pattern.Do they fit the blueprint of who has won at your shop? Not who's won at any shop. Your shop. Most owners can describe their A-players in plain English - we turn that description into a structured blueprint and grade against it.
- F3 - Synthesis. A real trade scenario, with ambiguity in it. Top candidates choose a path and explain the trade-offs. C-candidates list every possible fault. The signal is ridiculous and obvious once you start running it.
- F4 - Taste.Reply to a real customer complaint. We score on tone, empathy, professionalism, and brand alignment. Taste shows up in 60 seconds or it doesn't.
- F5 - Reverse. The questions they ask you at the end of the interview. PTO and snacks = C. Pay structure = B. How decisions get made, how you handle underperformers, what success looks like at day 90 = A. This filter alone has saved me three mis-hires in the last 18 months.
Why this works when personality tests don't
Personality tests grade who the candidate is. The 5-Filter grades how the candidate thinks and what they actually produce. The first is legally fragile and a poor predictor of trades performance. The second is defensible, measurable, and aligned with how field work actually plays out.
It also gives your hiring manager something to argue with. A score is hard to challenge; a video reply with a written rationale is not. The 5-Filter generates artifacts that survive contact with the post-hire conversation.
Where to start
Pick one role you're currently hiring for. Write the blueprint - three to five A-player traits, with a sentence describing each. Generate a synthesis scenario and a taste prompt specific to the role. Run your next 10 candidates through the loop. Compare the composite scores to your own gut after a 15-minute final interview. You'll either be calibrated or you'll have a learning opportunity. Either outcome is a win compared to the old way.