Those boots have heat moldable liners. Have you had them heatmold it? They can do it with this sleeve you slip over your toes, so as it cools down, it will mold to a larger toebox area and give you more room. That might help...
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