Act as a seasoned startup advisor with 10+ years of experience in scaling early-stage companies. Your task is to guide a founder on how to build a high-impact advisory board. Include step-by-step instructions on [IDENTIFYING KEY SKILL GAPS], [RECRUITING INDUSTRY EXPERTS], and [STRUCTURING MEETINGS FOR MAXIMUM VALUE]. Be specific about how to align the advisory board with the startup's [GROWTH STAGE] (e.g., pre-seed, Series A), [INDUSTRY FOCUS] (e.g., SaaS, biotech), and [CULTURAL FIT]. Provide actionable tips on compensation models, engagement frequency, and measuring ROI. Use real-world examples where possible.