my 6v magnum mod crapped out on me, my 5v box mod crapped out on me, and I got some new TI8100 boards right, MY vv was always warm so I said I would take it apart and rebuild......I built a new board and I got voltage going but no voltage out. I have checked all soldering, tested all for continuity, I was very gentle while soldering, so I am positive that I didnt overheat any components. I am so aggravated right now........I just might order an infinity, I would get the provari but holy overpriced. I will continue to mod, just pretty frustrated. I have built all of the mods above and had no issues at all, until I will start making new mods and then steal switches, or the case, or batty connector...........grrrr