i used to use the lee ball handle and a cordless power drill and i thought it was fine then a few years ago i inherited a forster case trimmer and i like it alot better although i think its alot more expensive unless you don't already have a cordless drill then it might be cheaper. you need a different pilot for each bore dia not caliber for example a .257 pilot will do all .25 calibers 25/05 .257 roberts etc. i think these pilots are around $6 ea. when i got mine it just had a 6mm pilot so i made the rest on a 9"x12" mini lathe, pretty simple job if you happen to have a lathe. the standard shell holder works for everything i shoot except 22 hornet and i think they make one for it. as far as i can tell the speed is about the same except its easier on my hands, they don't get sore. setup when switching calibers takes a little longer, but you can play with whatever length you want. i had some once fired rem brass that hadnt stretched enough for the lee cutter to touch so i measured the lot and trimmed them all to match the shortest one, so all would be equal. its funny i did all that work and i dont even remember now if that helped groups, but with the forstner you can do that if want to. hope that helps!