Experiments with tradewinds sailing. Sailing the Atlantic from Rabat to Lanzarote

Six days sailing alone across the Atlantic. It's 500 nautical miles, 900 kilometres. At first the waves are high. When they calm down, I can experiment. How can I sail in a trade wind? Deploy the two headsails? One headsail and the mainsail? Only one headsail? I find a setting that convinces.
And then I have to fell another huge decision...