In reply to French Erick:
I liked G14s when I had them but opted for G20's when needed new ones (body of G14's had cracked).
The difference was immense with weight and precision making it feel like wearing rock shoes instead of walking boots. The weight bit is obvious but the design makes the mono very pro-active, just like the "banana" effect in rock shoes. Good on ice and mixed. The G14's mono, that had seemed so good compared to dual, suddenly felt more like clogs.
I wouldn't have termed it smearing like Alasdair but all the other points feel like they are superbly well positioned, always positive feedback from some point or other.
Balling up in wet snow is the drawback but I've doctored anti-bots onto them and just have to stay aware.