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 NS West . 15 NS Snowtrooper Brother in Arms Edition . 13 Salomon Pow Snake
16 Rome Katana . 15 Now Drive . 14 Burton Genesis
14 Flow Hylite