I'm trimming on a Forster and for a bulk of .223 it takes forever. I have looked at the Lee options and thought of trying one, but this looks better. Lee swears they will have a new trimmer out that mounts to your single stage press in a die with a crank handle at the top, but it has been pushed back yet again. So has their bullet puller. Both options they say they hope to have out at the end of 2012, but that is after already pushing them back once. The PH case trimmer says it works from the shoulder and I suspect the Lee unit will as well if it comes out.