In one particular embodiment, the disclosure is directed to a conveyor belt including a set of warp knitted yarns configured in warp-oriented wales and a set of weft insert yarns inserted in the set of warp-oriented wales. According to some aspects of the invention, a radial slowness profile is imaged, including an image of altered region slowness. Any freezing of oil and plugging of conduit etc. At least a second bus that couples the DSP to the message processor and at least a second clock signal that clocks the DSP may be switched. Co-acting connection features on the drawer front and the skin releasably retain the skin to the drawer front.