Welcome to the thread! Still no news on the elusive v2. There have been a few instances on Reddit of people claiming to have the spring loaded pin. If you want to know before you order, shoot the retailer an email. They will know which version they have in stock.

and I must say it is a pretty sweet device....
and my inner redhead was coming out. Then I noticed that the tiny clear oring on the bottom of the rba section was about .25mm off, almost imperceptibly so. Adjusted that, and voila, no more leaks. 
