Forget worrying about the crappy threads, the 510 is a BIGGER problem. I had seen posts about how they wire it, and drifting ohm issues, but never paid attention to it, figured it did not pertain to mine. Sorry I don't have the time or interest to get into the details, but a search on the Evolv site shows owners with how to re-wire and fix the issues, and for me, not worth the time or effort to bother with. If you use this mod in wattage mode, it may never be an issue, if you buy one because it's a DNA board, and want accurate temp control, you may be disappointed. The ohms end up all over the place, and TC vaping will be a huge disappointment. Mine has been shelved, waste of money. If you love yours, good luck, vape on.