Just got XPV in the mail today was so happy, and within 5 minutes the O-ring in the 510 connection popped off. Didn't have time to mess with it, was on my lunch break and stopped at home knowing it was in the mail. When I get home I'm going to have to open it up and put it back in. Not very happy
I feel your pain..
The same thing happened to me within a few minutes of unwrapping it and hoping to see something that was almost perfect. As soon as a little juice seemed to hit the oring (like a drop) center pin popped through the oring. I took the top off and re-positioned the oring below the center pin and again, the same thing happened..
I took the extra oring they had sent (thank God) in the little bag and placed a second oring over the one that was in there and stopped it from happening. In other words, stacked orings. Doing this does raise up the center pin in the connector and makes it where you cant screw in your topper as far down as you should be able to, but keeps the pin from slipping through the oring and leaving your device unvapeable because the center pin is now recessed to the bottom of the canal.. If you have ever taken this aprt you will know what I mean. I guess some of these don't have this problem.. Mine did.
If I were the company, I'd scrap that connector and get a spring loaded connector that has a delrin or silicone spacer insulator. Something that just works and is solid.. I would like to see a connector that has a threaded shank that uses a nut that tightens from underneath side making a very solid connection and also soldered for extra stability. The soldering job looks good...
That's my only thumbs down on the device, besides wishing the screen was located on the same side as the up/down pot.
Great working device other than that and a big thumbs up.. The connector could be changed out fairly easy but why should we have to?