When you get down to it, the weight difference between those two skis is going to be so minimal that you will not notice it all. Ski weight is not that important, so don't worry about it too much. Nothing wrong with picking a light park ski, but there is no need to nitpick between two skis over which is lighter when they are both very similar in weight. I would focus more on the differences in design between those two skis. Do you want a traditional, cambered ski (Punx) or a 5-dimensional, rockered ski (halos).