Various embodiments are disclosed of apparatuses and methods for linearization. The method involves using a subsurface lubricator mounted to a wellhead of the cased wellbore to lubricate a downhole tool string into the cased wellbore by running a subsurface lubricator through the wellhead and into an upper section of a production casing of the cased wellbore. In one aspect, a criterion is applied to the maintenance of an error notifications list. As a result, the amount of memory necessary for storing the pixel data can be reduced, and sorting operation of the pixel data can be executed with fewer memory access times. Such methods and apparatus may be interfaced with a spectral envelope load detection system that can monitor multiple loads from a central location. The adjustment force is subsequently reduced and the sonotrode is activated.