Replying to TNK or Butterlicious

I have the oppurtunity to get either pair of these...the tnk in 175 or butterlicous in 181. I ski mostly park n alot of rails since i live in north carolina where ther is no pow and 300 vertical......How does the TNK and Butterlicious hold up on rails...i thrashed my tms in about a month of use.....ive heard 4frnt edges are pretty gud also but dont no nething bout ninthward edges?? Also im 5'10" n bout 130 pnds if that helps.......

-thanks