One thing about the LNL AP that I love is the half index on the up stroke then the other half indexing on the down stroke. Smoooooooth!!!!

No stutter or jumping that makes for powder jumping out of a case. Of course a 550 could be turned by hand nice and smooth, but they are four station presses. No matter what, go to:

Ultimate Reloader

And watch all the videos. Oh, and: Powderfunnels.com -- Fully Featured Powder Through Exapnder