Further processing is quick
With the cut-to-length method, the logs are cut right in the forest. Therefore, the logs can be sorted by diameter into same-sized batches at the sawmill before sawing begins. This kind of batch can be sawn with assembly line speed because all the arriving logs are within the same diameter range. The saw's blade setting does not need to be continually readjusted.
With the tree-length method, the logs are generally sawn in the order in which they are detached from the trunk. Thus the top-end diameter of each log is different and the saw's blade setting must be altered for each log. This in turn leads to a slower line speed.