Episode 110 of Performance Marketing with Fexingo reveals a hidden ROAS killer: Amazon's placement multipliers for top-of-search and product pages. Lucas walks through how a seller of premium kitchen gadgets saw ACOS jump from 18% to 34% overnight after enabling dynamic bids with placement adjustments, because the multiplier applied to every click, not just incremental wins. Luna pushes back on whether placement modifiers are ever worth it. They break down the math: a 50% multiplier on top-of-search means a $1 bid becomes $1.50, but if conversion rate doesn't scale, you bleed margin. The episode drills into real campaign data, talks about when placement multipliers actually work (retargeting, high-margin launches), and why most sellers should cap modifiers at 10-20%. Specific, actionable, and based on actual Amazon Ads console behavior as of mid-2026.