I started with a Herter's (basically a forster by a different name), but I didnt like the way the cases were inserted into the holder, and it was too slow for my liking, so I switched to an RCBS, and for the last 6 years I've absolutly loved it, its quick, easy to setup and dial in, and it is very consistant. About the only trimmer I'd trade it for would be a Sinclair-modified Wilson.