Agree, I went and bought another one yesterday, I just missed my ABM600 too much. It has so much flexibility and yes, that 100hz slider has much more control over the bottom end. Similarly I find that the 5Khz slider has more effect on the top end than the actual treble knob.
Just waiting for Black Friday or Xmas sales for the Neo cabs to come down a bit, will be nice to have an ABM set up that I can carry easily.