A method, simulation, and apparatus are provided that are highly suitable for treatment of benign prostatic hyperplasia. The property distributions from each region may be automatically classified to identify different edit classes within the property space, which are then used to apply an edit effect to the digital image within the tool impression. A delay caused by the propagation of the reference signal through the front end circuitry is measured. The storage controller uses the bitmap to rebuild those portions of the physical storage drive being used by the operating system prior to rebuilding other portions of the physical storage device.