I don't have any info saying the Edgerton version is any better other than there's no need for surgery. Results wise, I've not seen anything. But I could be wrong.
More importantly though is we're already starting to have a conversation about the different types of machines and commercialization BEFORE we have facts about the efficacy. The argument is starting to move away from "is epidural stimulation going to improve function" to "what kind of machine is better". The cart is still way in front of the horse on this. Cdrf has already partnered with the expectation of commercialization before the verdict is in. When companies make an investment they do so with the thought of a return, so I hope we first have the basic information on epidural stimulation before we start making competing machines that then will need to go into people to make their money back. If we get to that point, might as well just go to Thailand or wherever.