@ Dan,
That was me that posted on ultralight reddit (my reddit/youtube channel name is backpackingvideos). I got an email response from Joe a couple days ago. In brief, they are having issues with the current batch of struts. According to Joe, a new batch is on its way and should be available within a week or so. This could explain why they have taken the Plexamid offline temporarily until the issue is resolved. He hasn’t indicated whether the Solplex will be brought back (or the Hexamid). I think I will ask him this question directly, though, and report back.
Like I said before, I think a Hexamid with cuben sewn-in bathtub floor would sell quite well. Personally, I prefer the Hexamid design without the struts, but I see why they introduced the Plexamid to get more headroom for taller hikers. The simplicity of the Hexamid can’t be beat–a single pole setup for me is ideal because poles can/will break. Also, some hikers carry only one pole.
@David
The Hexamid tarp you are referring to is the one they discontinued a year ago? I have one of these. I’m baffled as to why it was pulled, as it was quite popular. I don’t see why Zpacks would offer the Hexamid tarp with storm doors in 0.34 cuben. It makes more sense to go back to the 0.51 cuben tarp and tent. The glory days of Zpacks would be back! We are getting a crowded market today in UL shelters, and more options is better for Zpacks, not less.