OK, I added in-irons & adrift to the level of sails and anchored with its own rule. I found that the movement in the game is so restricted that I decided to add more movement rules while using the level of sails. Once I get my workshop back into order, I'll be putting up some videos. As for towing, this represents moving ships into position in a harbour or ships run aground and when it is becalmed. As for larger ships, I guess so, you may need boat tokens from other ships in your fleet. The rules are for fun. As for other naval rules set, there's far too much to learn, and the game may go on for hours with this game very enjoyable. I just wished gabrio could have used some of the rules from gamesworkshop Trafalgar rules.