I love the designs you do man, but yeah, I'm in Europe so there's no way to try before I buy, which definitely is a reason that keeps me from buying one of your guitars.
One thing I think you could do to attract more people to Nelson guitars is offer options for other manufacturers pickups in your guitars.
Then there's the Gibson scale necks only thing offcourse, for some people (I'm one of those) a Gibson scale neck just doesn't feel right so they won't buy a guitar that has that, besides that all your guitars seem to be neck through, which might not be what most people favour (I'm really a bolt-on neck type of guy myself).
I think what you're offering, while beautiful as it is, maybe is a bit limited to appeal to a broad range of people, even here on ILF, that might be what you're noticing.
I love your passion and enthusiasm and the video you did for the Kickstarter was great, you do deserve more recognition for bringing out the beautiful out of the ordinary designs you do and creating lots of parts yourself and all of that in my opinion.

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