thanks for the quick response. your input is highly appreciated.
i personally haven't tried the beta ul's so i really don't know anything about how responsive that binding is, but judging by the design of the high back and the heel cup, it looks soft and flexible. and yes, i use the board for alot of freeride, top to bottom type riding, never on the park or pipe.
now... how much difference will i feel on the cad's? is it even worth the money? i love my spi's and really have no reason to change them out... aside from the weight, i think its really not worth it to spend another 300.00 bucks on them.