My original Sector Towers were one of the first structures to go up. A little hastily and spindely I might add so late this winter I upgraded the structure based off the originals. Some of this was prompted by me getting ever closer to sector timing for my circuit via a friend of mine, BT. We're not quite there yet, but the custom chip has been developed, Copper gaps are in (to register cars going past) and soon it'll be all up and running for lap timing as well as sector timing just like a real F1 race! The new structures were made primarily of stick and sheet balsa wood, a little styrene and graphics. They certainly look more robust and are easily spotted from the drivers stations.