Replying to Binding Help +k

okay so this is my question.

i got some marker griffons that ive used for 1.5 seasons.
they seem dead and prerelease like CRAZY.
is this actually due to the springs just being dead or could the forward pressure be set wrong?

another question. if i have to replace them what are your guys thoughts on
http://www.evo.com/outlet/alpine-ski-bindings/look-px-12-80mm-brakes.aspx

weight wise in comparison to griffons
dependability wise in comparison
and performance wise

and incase anyone has to ask
im 5 11
155 lbs
ski almost 100 percent rails

thanks guys