The 30-Prospect Manual Discovery Experiment
Before buying any sales tool, hand-pick 30 prospects, write each a real note, and let the response rate reveal your ICP parameters
- Difficulty
- Easy
- Time to result
- ~weeks to results
- Steps
- 5
- Confidence
- 95%
A pre-tooling method for finding your first leads and discovering your ideal customer profile. Instead of blasting thousands via enrichment tools, the founder manually identifies 30 people worth learning from, notes the commonalities among them, personally reaches out across every channel, and reads the response pattern to decide what to change next. Only once parameters emerge do you graduate to enrichment tools like Clay.
Origin
Jen Abel, JJELLYFISH — a reaction to founders (often engineers) over-engineering their sales stack and blasting markets before knowing who they're selling to.
Core principles
- 01Volume comes after you've identified the parameters, not before — even in mid-market and enterprise
- 02Enrichment tools yield nothing if you can't tell them the right questions to ask; parameters are those questions
- 03Discoverability is itself a signal — if you can't even find 30 of these people, the segment may be unworkable
- 04Manual reps force the natural experiments that surface your real ICP
How to run it
- 1
Hand-pick 30 prospects
Manually find 30 people you're genuinely excited to learn from and would happily spend 15-20 minutes writing a thoughtful note to.
Pro tip If finding 30 is hard or impossible, that's an early warning about the segment — you'll eventually need hundreds or thousands.
Watch out A target segment defined by undiscoverable parameters (e.g. 'high-net-worth individuals') forces you to qualify only on live calls, which changes your funnel math.
- 2
Extract the commonalities
Look across the 30 for shared traits — team size, industry, tenure in role, previous roles — to start collecting the parameters of who you want to learn from and sell to.
Pro tip There's almost always some commonality; naming it is how you begin defining your ICP.
- 3
Reach out across every channel
Send each a specific, high-effort note over email, LinkedIn, cold call, even a Twitter DM — pull out all the stops.
Pro tip Cold calling has surprisingly higher interest rates than email in many cases; don't dismiss it.
- 4
Read the response rate and run the next experiment
Count responses (one? five? zero?). Zero forces a decision: same segment with new messaging, or a different role entirely. Iterate in batches of 30.
Pro tip Two or three good responses is enough to justify building a real campaign for the next 10-15 people in that group.
Watch out Don't jump to volume yet — truncate these experiments as tightly as possible before scaling.
- 5
Only now bring in enrichment tools
With parameters in hand, feed a tool like Clay the right questions to enrich and scale outreach to the validated group.
Watch out Blasting thousands via Clay before you have parameters damages your domain health and yields nothing useful.
In the wild
A founder told Abel they wanted to serve high-net-worth individuals. She pushed back that such people are hard to find by defined parameters, so qualification can only happen on a call — meaning roughly 2 of every 10 conversations qualify and you need far larger top-of-funnel numbers.
→ Illustrates that a segment failing the discoverability test forces worse funnel economics and more manual qualification.
Common mistakes
Buying and integrating tools first
Founders (often engineers) wire together sales tools and blast 5,000 notes in a day, taking a domain-health hit and learning nothing, because they never established who to target or what to say.
Chasing volume before parameters
Focusing on volume in the beginning skips the identification step; volume only pays off once you know the parameters.
Is it for you?
Best for
Pre-PMF founders who don't yet know their ICP and are tempted to automate outbound before validating who to target
Not ideal for
Teams that already have a validated ICP and repeatable message and simply need to scale proven outreach
From the transcript
“can you manually find 30 people that you want want to spend 15 to 20 minutes writing a rock solid note to”
“volume comes once you've identified it and know the parameters parameters then allow you to do really strong enrichment with a clay you now know…”
“if you're not asking it the right questions these enrichment tools these sales tools will yield nothing”
“now if you send out those 30 notes and they're you know you wrote them specifically ... how many people respond one five zero right…”
From the episode
The ultimate guide to founder-led sales
Jen Abel (co-founder of JJELLYFISH)