Janet me too, can't get an even chop at all..
I gave up on that years ago, plus I wasn't gong to drag the big one out for that (but same problem with mini FP). I've wondered if it might've worked better in a med size FP rather than the big 14 cup one I have, don't know though. Finally I got close with the VM. It has you chop onions with water in the container and that almost works. Mostly I just chop things by hand though, unless it's a big batch of something. If I already have to chop something up to fit in a FP or whatever, I might as well just do the whole thing by hand.