I'm writing an article about types of silver bars for investment and need insights from US-based certified financial planners, commodities analysts, economists specializing in precious metals, or academics specializing in financial markets. Please answer any of the following: 1. How does bar size affect an investor's experience in practice, including premiums, liquidity, and resale? 2. Does the production method (cast vs. minted) meaningfully affect value or resale, or is it mostly aesthetic? 3. How much does refinery reputation matter when buying silver bars, and what should investors look for when evaluating a brand? 4. What role do packaging and security features such as assay cards and serial numbers play in resale confidence and authenticity verification? 5. What are the key trade-offs between silver bars and coins, and which investor profiles are each better suited for? 6. What factors should an investor weigh when choosing a silver bar—size, budget, liquidity needs, storage? 7. What are the main advantages and drawbacks of silver bars as an investment vehicle? 8. Where should investors buy silver bars, and what guidance helps verify authenticity, avoid scams, and evaluate buyback policies? 9. What are the main storage options for silver bars, and what should investors know about the insurance implications of each? Finally, please include your role/title, LinkedIn profile, company website and descriptor, and a follow-up email (must be the source’s).