On this controller, VDROOP is controlled by leg #15 being connected to leg #14 using a tuned RC network. If VDROOP is not a desired characteristic leg #15 is to remain disconnected. Because of this requirement the proper way of eliminating VDROOP would be the lifting of leg #15 from the board. The unexpected rise in VCORE resulting from this mod is most likely due to shorting the resistor of the offset circuit. Anyone doing this mod needs to be aware of the possibility of blown MOSFETs. With only two FETs per phase, they are going to be hard pressed to cope with the on-load transient spikes that will occur when the processor is pushed hard. This will be especially true when using a quad-core CPU.