I agree that having some sail up would help make the boat more comfortable. Good idea to check out reefing system and furler before you need it. If the genoa is strong enough cloth having it almost fully furled (a few feet out only) gives one an almost flat sail to work with. CE is a long way forward but not much you can do on a sloop.
As to cloud color, I was at a yacht club near Cleveland many years ago when there was a tornado watch in effect and the clouds included distinct patches of yellow and even green. I imagine a meteorologist would be able to explain why these colors appear.
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.