Alright so I am looking to buy some cheap invaders at the end of this season. I am 5'7 130 pounds. I currently ride salomon threats 161 which i have center mounted. Before next season i am supposed to grow to around 5'10- to 6 foot. I am wondering whether i should get 171's or 178's I mean my 161's don't feel too short and they are center mounted so I am going more towards the 171s. Tell me what you think.