Demoed the Mantra on the East coast and also the west. Park City and the Canyons. 2 Ft of snow on a monday and I found freshies Thursday, Friday and Sat. Crushed through everything I could find. Quick through the trees, light to hop around on some steep chutes, Overall an incredible ski. Also been a racer my whole life and never have skiied on anything else than Race skis, on east coast groomers and Ice these skis held up to quick slalom and fast GS turns. I am 6'5" 205 and have skied the 177 and 184. Purchased the 184, could probably go longer but I tend to enjoy a shorter ski. Still need Bindings???