These rules were designed to be a medium degree of difficulty. More detailed rules for fighting and moving sailing ships have been written. However, they are not playable or enjoyable due to the need to constantly stop play in order to check the rules or a matrix. These rules were written for 1/600 scale vessels. There are also lines of 1/450, 1/900 and 1/1200 vessels on the market which can use these rules as written.
SAILS was designed to reflect ship to ship combat with squadron size the largest size battle. Regardless of the scale, as written each model on the table represents one real ship.