How low do I go?

I recently got bigger wheels and tires for my c, I really want to lower it to a point where it makes the gap between wheel and fender much less. I am currently think about the NF210 lowering springs but I am soon moving somewhere where snow will be much more common and I want to make sure that the car is still fully useable all year round. From what I have read about NF210 springs they seem to lower the car just enough to get rid of the gap but I am having trouble finding good pictures of them installed on the car, if anyone has experience with them and know if they would be fine in snow or rough roads please let me know.