Why does Long John Silver want to wait until the last minute to take over the ship?

Long John Silver wants to wait until the last minute to take over the ship to ensure he has the element of surprise on his side. By biding his time, he can gather more information about the crew's loyalties and the ship's vulnerabilities, making his takeover more effective. Additionally, waiting allows him to manipulate events and people to his advantage, increasing the chances of a successful mutiny without early detection. This strategic patience showcases his cunning and ability to play a long game.