FX USA dissolved on/about October 2023. Utah Air took over from FX USA for parts and service.
A couple years back, I bought a new .30 Paradigm and Tom spent an hour with me late on a Friday night answering many questions. He was very helpful but at the time, he was doing a lot by himself. I think his business took off with the success of the EVOL, and I know he was spread very thin even back then. Really out of touch with his current availability or direct support model.
Shane, Chris and others from AoA Service Department are excellent, and maybe they are deluged right now with volume. Keep trying and email followed by a VM usually gets a call back.
Sorry about your experience, but bear in mind there are many EVOL owners on this thread who might be able to help you by sending them a PM. When I can’t get directly to a Manufacturing technical resource, I rely on some very sharp knowledgeable people here on the forum.