Foxy's Charters (http://www.foxyscharters.com/) just got back to me and said they are offering r/t service from Pusser's in West End Tortola to Jost Van Dyke departing at 6:00 p.m. and returning at 1:00 a.m.. The cost is $150 per person. You can e-mail them at info@foxyscharters.com.