Scratching my head here, bought a used Seymour Duncan hotrails and and tested it on arrival. Open circuit on both coils , seperated the red & white wires and retest , nothing , only the ground wire which was connected to the rails . I have another SD hot rails and it tests out just fine. I get the same results with another meter. The seller then asks me to test it in a guitar so i hook it up to an amp , tap on rails and walla it works . Hold it close to guitar strings and both coils are sounding good . Test for continuity at the cable jack after getting sound - still nothing . Tried the 200k range as i have been fooled by pickups that were above 20k ohms - still nothing I am doing something dumb and need help understanding what the dumb is. The top one is a new SD rail , the bottom one is the problem child. I am not sure if it a real SD. Thank you in advance This is what i am seeing.