Pre mod vdroop pencil mod vcore 1.55v in bios, under load reads 1.48v~ with DMM, post mod vcore 1.55v bios, under load DMM 1.54v~, close enough to zero drop.

Speedfan gives a reading of 0.04v higher than the vcore set in bios, but when I measure it directly with DMM it's pretty much the same as set in bios.