The 159 riot has a 26cm waist, the 155 riot which the OP was inquiring about has a 25.2cm waist. Which a 25.2 waist will still be fine for a size 10 boot.
Oops, you're right, I missed that part of his post.
16 Gnu Swallow Tail Carver . 16 NS West . 15 NS Snowtrooper BIA
16 Burton Genesis X . 15 Now Drive
16 Flow Talon . 14 Flow Hylite