Ans Marcel can get a bit rolly (unless you have a catamaran, in which case you are good to go there), and Tintamarre is frequently too rough for a good overnight stay, but Tintamarre is just a bit further and I've always gotten a mooring ball there. And should they all be taken, Anse Colombier on St. Barths is just a little further and there's always room there - if the recommended mooring balls (free) are taken, you can anchor there.