Actually, we did shop around. Our past insurance was through the Gowrie Group and their Jackline Policy with Markel as the insurer. Good insurance with a AM Best rating of "A". We had to purchase a rider to stay in Grenada and the deductible, in the case of named storm damage was $18,000. The premium for the boat in 2020 was US$3900. Another US$1000 was added for boat liability and off boat liability with US$1 million/$500k limits.That is very steep. Might want to shop around.
Given the current Covid situation in the Caribbean, we felt we were at risk should the islands start shutting down again as they did last year. We wanted more flexibility and found that with Massy United out of Barbados. We are covered anywhere in the Caribbean for named storms with a $5500 deductible / $3700 for other losses. They are AM Best rated at "A-". They maintained that rating even after Irma and Maria.