I'd still rock the alpine deck. Not a whole lot of reasons to ride softies in SoCal. If we had more pow, better trees, and you did more park I'd be all for a BX rig, but it just doesn't seem suited to your riding.
Even switch on squaretails and 60* isn't a huge problem.
Chad, when did this work of art come about?
Need a punkass kid to make sure it goes fast in snowboard mode?
If you cut that nose square, decamber it 15cm from the nose, 10cm from the tail, and give it a progressive 14/17 sidecut, I'd be all over that. Of course, it needs a companion 163 with 10 cm decam in the front, 5 cm in the back, and a 10.5/9.5 sidecut!