I'm actually considering the same two for my Raptor X (force sl is in there too). I usually prefer a stiff binding so I'm leaning towards the sf.
The idea of canting is something I'm intereseted in though as it should help me keep centered a little better. Not sure if you've experienced this on the heritage, but occasionally I'll get knocked off line and it'll send me to the tail of the board. This "oh crap" moment is something I've been working on correcting and I'm thinking cants might be a potential solution.
Any insight is much appreciated.