Thanks DIYer. We get a lot of Santa Ana winds this time of year and will be a great test to see if the lights stay in place. I did put the turret light wires under extra tension using two 6' extension cords that connect the turret light strings ends down to the one-story light strings attached to the gutters below. That is a great question and a concern I had in designing the brackets. In the past the Santa Ana wind gusts would blow some of the icicles light strings up and over and into the gutters along the top of the turret and that was a real pain to flip them back down without getting the extension ladder out again. That is when I thought about putting the lights on small brackets below the turret gutters.
Thanks, Paul