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Agreed - washes out. Took me a few sketchy high speed runs to figure it out. Mine is narrow though. Wide boards are no go. Was pretty interesting to compare different techs. My mate had a Burton with a "W" shaped base - nice and flexy and chuckable but was useless in the deep stashes and particularly in technical bumpy stuff through trees. To be fair though, I was wishing I could shrink my board from a 56 to 50 at that point! (silly, ooh, lets follow that tree line down - it should meet up at the bottom moment...)
Also, went for a more duckfoot stance this time. mucho better!
TRA-
I think most techs and shapes have a roll somewhere. I really like cheap, mid flex, traditional camber park boards as well as flat between the feet jib boards.
My current favourite is endeavour I've got.
http://www.endeavorsnowboards.com/clout-series/Albeit last seasons version, it's fast, stable, has pop for DAYS, is fun in powder and it presses pretty well if you're willing to work for it.
I'm 187cm and 81 KG and ride the 156.
IR
I found my bataleon would sort of wash out on the really hard packed stuff if I didn't really commit to the carve and force it to dig in. It was also way too wide* for me so I sold it.
*shop convinced me to go for a wide board despite my protest, reverted back to 'normal' widths and don't regtet a thing.