i want the 152 but i wear size 12 and the boards waist is 24.2, so i dont think that'll work out. my only concern with the evo is that it's almost the same board as the sl just shorter, so i dont know how much improvement ill see
Evo is softer, has blunted edges and is a true twin.
I weigh the same as you and ride 150-152. Id go with a 152 if it were me, only because you still have the SL.
I also rode an SL, in 151 and they are definitely different boards.
Just get a revolver for your big feets.
Never Summer Revolver Snowboard 2012 | evo
152 or 155 for $399 which is about $100 off the new models.
Never Summer Revolver - 2011/12
Even cheaper at $375 for a 155.
I also ride bear. I'm going with a Westmark for it this year (did the Evo last year). Blacklist is an option with your 12 boots.
But honestly, Id lean towards a 152. You don't need to go fast at Summit or Bear. If you did it would be boring by mid morning.