The 159 is the right length for your height/weight/boot size. Sounds like it's your skill that's lacking, so in that case maybe the 157 would've been better for you.
16 Capita BSOD . 16 NS West . 15 NS Snowtrooper BIA . 13 Salomon Pow Snake
15 Now Drive . 14 Burton Genesis
14 Flow Hylite