Nov 29, 2017 · 26m · 20vc
20VC: Why Convertible Notes Are Ridiculous, Why Party Rounds Are Bad For Both Founder and Investor & Why Pro-Rata Rights Are A Mess with David Waxman, Founding Partner @ TenOneTen Ventures
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In this episode of The 20 Minute VC, host Harry Stebbings interviews David Waxman, Founding Partner at TenOneTen Ventures, exploring the realities of transitioning from founder to investor, the pitfalls of convertible notes and party rounds, and the evolving mechanics of pro-rata rights. Waxman offers actionable insights for early-stage founders while highlighting the growing strength of the Los Angeles tech ecosystem and portfolio risk management strategies.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Harry holds 34.9% of the talking time here. How this is scored →
speaking balance: gold is Harry, purple is the guest (3 minute bins)
David forcefully rejects standard startup financing trends, asserting that multi-million dollar convertible notes make absolutely no sense and create severe unaddressed problems.
Hardest push from Harry ▶ 15:42 Ownership Demands as a VC Conviction Litmus TestHarry directly challenges David's advice for founders to push back on Series A ownership demands, arguing that insistence on ownership indicates true investor conviction.
Biggest teaching moment ▶ 13:01 The Structural Mess of Pro-Rata RightsDavid delivers an expert breakdown explaining how structural shifts in venture capital—such as SPV creation and pre-seed layers—create toxic conflicts over pro-rata rights.
Harry holds his own ▶ 15:42 Testing Investor Conviction via Ownership ThresholdsHarry showcases deep industry domain knowledge by reframing VC flexibility on ownership percentages as a test of whether they truly believe the startup can reach massive scale.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Harry as informed peer | Guest teaching | Guest disagreement | Harry pushing back | Why |
|---|---|---|---|---|---|---|
| Welcome and Origin Story: Transitioning from Founder to VC | 4 | 5 | 1 | 2 | David details his transition from operator to VC using the grandparent analogy and discussing portfolio construction. Harry asks thoughtful follow-ups about what makes VC an artisanal craft, demonstrating familiarity with venture mechanics. | |
| TAM Analysis vs. Founder Vision and Market Expansion | 3 | 6 | 4 | 2 | David criticizes standard TAM slides in pitch decks as 'tamfoolery,' arguing that true market potential comes from founders who redefine markets like Uber did. Harry guides the conversation cleanly without disputing David's thesis. | |
| Evaluating Market Trends: The Joy Mode Case Study | 3 | 6 | 5 | 3 | David highlights Joy Mode as a trend study before strongly attacking large convertible notes and SAFEs for leaving critical deal terms unstated. Harry probes on SAFEs and party rounds to elicit David's contrarian views. | |
| The Modern Friction and Messiness of Pro-Rata Rights | 4 | 7 | 4 | 2 | David provides an insightful breakdown of how pro-rata rights have become messy due to competing pressures from seed funds, SPVs, and stricter Series A ownership thresholds. Harry prompts open-endedly to allow David to break down the ecosystem friction. | |
| Founder Strategies for Managing Series A Ownership Dynamics | 7 | 6 | 4 | 6 | Harry offers sharp pushback, suggesting that a Series A investor's insistence on ownership percentages acts as a litmus test of their conviction in a $5 billion outcome. David acknowledges the pressure founders face while maintaining that founders often hold more leverage than they realize. | |
| Perspectives on Secondary Markets and Exit Liquidity | 6 | 6 | 5 | 5 | Harry cites previous podcast guests to challenge David on secondary market liquidity, while David playfully rejects the quickfire premise by refusing to pick a favorite book. David then educates the host on why top VCs often exhibit higher loss ratios due to aggressive risk-taking. | |
| Quick Fire: The Growth of the Los Angeles Tech Ecosystem | 5 | 5 | 1 | 1 | Harry leads a rapid-fire sequence covering the LA tech ecosystem, cash zero days, and accounting versus finance. David enthusiastically details LA's deep tech roots and his fund's investment in Velocity. |