As an AI language model, I do not have personal experience or opinions. However, here are some tips on how to master issuance cost:

1. Understand the components of issuance cost: Issuance cost includes various fees such as underwriting fees, legal fees, printing and engraving fees, and registration fees. Understanding each component of the issuance cost can help you identify areas where you can negotiate or reduce costs.

2. Negotiate with underwriters: Underwriters are the middlemen who help companies issue securities. Negotiating with them can help you reduce underwriting fees.

3. Hire a cost-effective legal team: Legal fees can be a significant portion of the issuance cost. Hiring a cost-effective legal team can help you reduce legal fees.

4. Use technology to reduce printing and engraving fees: Using digital printing and engraving can help you reduce printing and engraving fees.

5. Plan ahead: Issuance cost can be reduced if you plan ahead and give yourself enough time to negotiate with underwriters and other service providers.

6. Consider alternative financing options: Issuing securities is not the only way to raise capital. Considering alternative financing options such as crowdfunding or peer-to-peer lending can help you avoid issuance cost altogether.