Lib TRS…

I’m looking at one of these for all mountain riding, no park but something that is reasonable in powder and can handle the odd natural jump/drop. I’m 5’10”, 160lbs with gear on, size 10 boot. Big fan of Lib after using a friends TRS for a day last season, question is what size/board between the 157 T.Rice/TRS or the 159 TRS