The Lee setup is not near as precise as "conventional case trimmers, fixed in 1 length only, and not near as versatile as the combo trimmers. With the RCBS case station for example, you can do any kind of case work needed except tumbling such as chafmering, cleaning primer pockets, uniforming primer pockets and other operations. With the Lee, they are all separate steps and have to be done 1 at a time with different case tools.