I bought copper/brass US made from Jim Carter a few years ago. It was surprisingly affordable at the time, but I don’t think they are any more.
I also bought the highly recommended Canadian Spectra tank. The inlet is at a weird angle and I struggled to make it work. Still bugs me that the filler neck on the truck is nearly horizontal now.
When did you buy your tank?
Mine was exactly correct (purchased in September 2021).
I wonder if yours was just a fluke welded together incorrectly or if they recognized the problem and adjusted the filler neck on future production?
The side by side comparison photo of old and new isn't very good. The perspective makes the new tank look a lot larger than the original but they are identical.