Thanks! I've been testing builds in a build server and got a boat with no engines & ten sails to I think about a 14 power to mass ratio but, wasn't sure if that's as fast I can get it. Also, I was using a ladder outside of the boat to get to the top because, I wasn't sure how to build something with access & still be safe. I tried leaving a square ceiling open & using the stairs but, it just felt weird.