I bought an evic VT almost a year ago. The positive 510 contact in mine has always been stuck, despite literature online claiming it is spring-loaded. If you review the thread, it was a relatively common issue. No amount of poking/prying has fixed it.
Although it adds a little height to the mod, if I want to use an atty that has a positive 510 that isn't quite long enough, I'll use a Kepler 510 heatsink since it has a two-way telescopic positive on its 510.
I looked it up and saw Gearbest actually has them in stock in their EU warehouse so I'll order one in case I need one in the future, thanks for the tip!
So how's your VT holding up after a year of use?