Sadly the Skyburner XL did not generate enough interest for JonT to make a build run. Jon did share the sail plans with me with permission to build. RobB sent me the prototype to measure the bridle and framing details.
Thanks to both of you guys for your generosity!
A future build project for this fall. Based on what is learned from that project will then build a scaled up version of the Enigma. After that likely will do something smaller.
But first I have a set of kites to make...