Lenco Autoglide Trim Tab Kit Sgl ActAdvanced solid state electronics monitor your boat's systems and are constantly working to increase performance and economy. The system can be used in new or retrofit installations. The tabs are automatically put down before taking off to reduce bow rise and time to plane. Once the boat is on plane it is automatically leveled and held there. It's that simple! Setup is simple and it can use some or all of the data from other devices such as GPS speed,