It's working!!! Mjollnir I came online today. Here are some photos of its first successful runs. Without any optimization of the primary coil, I have achieved spark lengths of 20 inches.In the daylight it is difficult to see the longer arcs because they are so thin. In the picture below, I attempted to adjust the exposure and fstop on my camera to make the sparks more visible, but I'll probably be able to take better pictures at night.
Below is a video of the coil in action!