I purchased a VTS 250d about 3 weeks ago. I was unable to test the item as I did not have any cga to connect it with. I finally got a hold of one and tested last night and even just now.
Sadly, as I opened the gas tank slowly I noticed that the regulator was releasing gas from the small back holes:
I am assuming that this regulator is useless. I am mad as this is my very first regulator purchase. I'm a bit discourage as I was extremely excited to build my own reg. I purchased it for $50. The sellers post was titled, "new old stock" and I went based on the title and a few pics when I did the purchased.