It’s been almost a year since the last post on this thread, but I have several edf’s coming in the mail, and I’m planning on building a viggen with one of them. It’ll be a 64mm 12 blade Eflite or freewing unit, I’ll have to look at the specs to decide which to use. I have the Eflite 64mm f-16 and it’s super fast, so I’m leaning toward the Eflite unit. Time to print off the plans!