It depends on the models
60 & 3000 = no waveform + manual chopping by numbers & ear
2000 - waveform chopping, no auto-chop
2000XL ,2500, 4000,5000, 1000 all have waveform & autochop
500 - no auto and manual choppin im quite sure of.
I use a 3k and i love it, very easily to chop on even tho its just numbers and manual chopping, you can chop it crazy exact