Aw, dang! And I just ordered a black Subtank Mini V2 for some TP builds with my Evic VT. I do know that my original V1 Subtank with spring loaded 510 fails to connect except rarely and briefly and I took it to be because the two springs don't play nice, but to be honest, this is the first I hear of the STM having such problems. Anyone else having trouble with TP builds on the new STM V2?The vt has been flawless in Ti mode with the Plume Veil rda with a .2 ohm Ti build. The device produces the same temp vape each and every time. Not so with the STmini. The small changes in atty res .02-.03 are causing me to have to move the temp control up or down to compensate for a vape that's too cool or too warm. It may just be that the floating intermediate pos pin in the base of STmini is causing the res change....perhaps due to heating and cooling of the atty. Could be that the 510 spring in the VT isn't strong enough to overcome the floating intermediate pin's insulator friction in the STmini's base, don't know, but I do suspect this is the case. All three of my STminis behave this way. One worse than the other two.