Replying to Punx vs Urban Punx

alright so ive got an opportunity to get some real good prices on a pair of skis through my shop which only sells atomic skis so i was wondering which would be better.... I'm 6'0" about 200 pounds but not fat and i would like a ski mostly for rails and stuff since i dont really have that big of jumps at my mountain i was thinking either a 175 in urban punx or 182 in punx because i dont want the extra swing weight of a 184 which is the other urban punx size and the extra distance to true nose grabs and stuff... i already have 181 t-halls for jumps and stuff so if u could give me your input it would be great... thanks