These wingnuts are really easy to use and their construction (in titanium) is really top notch. These things are beautiful and light. Foam in the tracks traps the bolts in their correct place allowing mast with battery box to be dropped on easily, followed by tightening the wingnuts. Very fast. I have 2 reservations. First, it is hard to tighten the wingnuts optimally and also have their heads running paralell to the cord of the mast for minimum drag. The ease of tightening/loosening the T nuts allows easy adjustment of mast position. My second reservation is who needs to adjust mast position after you have figure it out. I am a set it and forget it guy, but I really hate extra drag. Amos shapes was great in fulfilling this order.
