A method for reducing the altitudinal errors and run-out of a spindle motor is disclosed. The invention also includes DRAM arrays having low rates of refresh. When the insertion mechanism is mounted to the connector and the control handle is used to slide the sharp needle out of the tube, a blunt cannula first moves into contact with and enters the bore of the valve mechanism of the connector opening it and protecting it from damage that may be caused by the sharp needle. The charge fluid passage and the drain fluid passage are open to the fluid sump while the charge fluid passage and the drain fluid passage being separated from each other, thereby preventing the closed fluid circuit from overheating. One or more anchors being disposed in a substantially closed pre-deployment configuration inside the tubular body are configured for being delivered and deployed into a target tissue while remaining in a substantially closed configuration, and assuming its open anchoring properties only once embedded in tissue. Where the specification is used to construct the instance model, the method may further include using the instance model to construct the instance diagram.