Mr. Berg sent these pre-production versions to me directly. I would visit the Uni website, get the phone number and Mr. Berg, himself, will answer.
He may make them available to you- if they are not already generally available.
Please tell him you heard about these from the internet, from Richard, who he sent the "Merry Christmas" package to.
I also did an unsolicited weight comparison thread, on his behalf, as a result of his being such a nice guy.
The Uni seat/post combo is a solid unit and was scads lighter than the most expensive, lightest conventional set up.
Here is the link:
http://www.vintagebmx.com/community/index....amp;hl=shootout