Devices and methods for treating a diseased heart including devices and methods for remodeling or reconfiguring a shape of a diseased heart, assisting in function of a diseased heart, and stabilizing such devices on a diseased heart. The host is configured with a plurality of preferred correlation values, each of which has a different corresponding preference level. The positional reference member is configured to be detachably mounted to the IM nail by two positioning members inserted into two of the locking holes such that the longitudinal vernier scale is parallel to the longitudinal axis of the IM nail, and each of the locking holes is locatable by the longitudinal vernier scale. A controller is operable to control the controllably conductive device via the gate drive circuit and to determine, in response to the magnitude of the gate current through the control input of the controllably conductive device, whether the controllably conductive device is presently conducting current to the load. A portion of the memory is allocated to the pool of ports. The silicon-containing compound, which forms the liquid crystal composition, has low viscosity and high negative dielectric anisotropy.