Not to mention board flex. My lighter board although the same flex rating as my heavier one (acc thegoodride and each brands rating/website), is not as flexy.
I ride: NS Pandora 146 + Salomon Absolute premium Bindings
Stepchild PMS 149 + Nitro Eris Bindings +15 -15
Nike ZF1 5.5 & K2 Contour 5.