I owned an Omni and I say no on that one. Definitely no on the older ones with a slower extruded base, but the newer ones have gone to sintered. I found the taper unnecessary since TBT floats enough without it and it makes riding switch unnecessarily awkward.
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