Now the weather has improved I thought I'd give a further appraisal of the Nankang Snow SV-2 tyres.
In snow, ice and slush these tyres never ceased to amaze me, so driving them in drier conditions has given me a chance to rate them from a totally different perspective. The temperature has been approximately 6 - 7°C recently, and the roads have varied from wet/greasy to fully dry. I've found that the tyres struggle for grip under hard acceleration in first and second gear. It's all too easy to trigger the ESP light, something I found very hard to do even in snow! My car has the standard power output, so this would be magnified on a remapped car.
Secondly, they have absolutely no rim protection edge. They actually appear to sit inside the rim edge slightly. This isn't of much a concern for me because I have them on my winter wheels, which I've long since given up being careful with, but it might be worth considering if you're putting them on wheels you value.