The first portion of the SeaWater.fx file included in AnKor's shader30 folder has several wave size settings defined. If you create a .txt file called State.txt in your effects/fxtextures folder, and type the name of the size setting you want as the first and only line of the file, you can easily switch between different wave sizes between sessions. For example, to use the Sea_Light setting, type Light as the first line of State.txt and save it, the Sea_Light settings will be used. If no State.txt file is found in effects/fxtextures, then the default settings will be used.