I was surprised about the number of boats crossing the Pacific with a dinghy on davits - starting with all of the multihulls and including a reasonable number of monohulls. Many of the monos had vane steering which makes davits extremely difficult if not impossible. I would put on a cover, perhaps with supports under it (plastic pipe comes to mind). Also make sure the drain is open.
Back to Grenada in early December. Not sure I will remember how to sail. Will spend the winter and early spring in the Caribbean and then head to Bermuda and the northeast US. Still trying to decide if we will bring the boat to Canada, either in 2015 or 2016.