Had my frist problem with the jac, today i was cleaning my 510 threads and noticed the positive pin is pushed all the way down still makes contact, and has a springiness to it but its flush with the bottom. ive just contacted jac. still a little sad since i take very good care of it, maybe i gave it to much love lol. Time to break out the back up now.
That's not good. Thanks for the heads-up, and we'll be waiting to hear (as Kat has already indicated).