Giving away a $10 product as my freebie

My business involves coaching physicians using a specific career development tool called CliftonStrengths. The assessment costs $10 to take. I know that many coaches have freebies to help make their funnel, but I feel like the biggest draw to my coaching comes AFTER you see the assessment results. Is it crazy to give away the assessment codes for free to people? I’m not talking about posting it for free to the whole internet, I’m talking about offering it as a free gift to people who are active on my social media, etc. My coaching sells for $150 per session, so I only need 1:15 to convert to a coaching session to make my money back.