Replying to PE vs. 02 Salomon 1080's

I have bought a pair of 161 solomon 1080 skis..they come with the S810 binding and have never been ridin. I am Considering working out a deal with the ski shop to trade these ski plus some old verse 7's for a new pair of Public Enemy 179's ....I'm 5'11' and I wiegh 145lbs ..should I stick with the 161. 1080's or sould i have these skis exchanged for a 169 or 179 PE? please include the size that you feel is best suited to my specs