jedimasterobiwan - like the mountainous backdrops and skies throughout the Hoth battle, the snowplains are inconsistent during many shots as well - sometimes things look smooth, while other times the snow is rougher-looking in places. While Ronster's still mock-up looked good, I'm not sure if it's possible to do the likes of that on moving shots.
No worries here however, as I'd never have imagined the amount of work that adywan would end up doing already to make the Hoth surroundings feel more consistent. A few differing snow bumps here and there are to be expected, considering how mis-matched a lot of the original shots are.