-
No, the dropped nose has little effect (imo) as you tend to sit much further back on an SMP.
The key is in the two narrow supporting channels and the curve/drop near the back - shaped to fit your ischiopubic ramus which is what you actually sit on when in anything aproaching a vaguely performance orientated fit, rather than the iscial tuberosities / sit bones that everyone thinks they sit on (unless you ride a sit up and beg bike)
Having said that I wouldn't mind trying one of these SMP saddles just so that I can have an informed opinion if nothing else, after all cycling is bloated with 'snake oil' products.
I ride San Marco Concor light saddles of which there are two sub-types one with reinforcing and one without. The un-reinforced variant is quite concave (banana shaped) and allied with the none slip embroidery keeps you locked in rather nicely. Also I've had Flites with cut-outs, didn't notice anything special about that except more creaking noises.
So the unique selling point is the Concord shaped nose? is that concept really making a difference?
The one thing I do agree with Mr. Pearce on is padding. Shape -> padding everytime.