The only time I would ever do 180 like that is if I'm trying to do it on to a box and not continue rotating. I would never do it over a jump because it would force you to land in a contorted position. I don't know what Snowboard Addiction says about doing them like that so I can't comment there.
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2011 Smokin Buck Ferton 155
2013 Flow NX2-SE
2013 Flow Hylite boa
Burton Stagger pants/jacket