I'm giving Griptech the ol' college try this season. I don't think you'll have a problem with edge hold. A lot of the Arbor team sends it on 40+ on the Draft so there's certainly no limitation to the board as far as grip. If you can throw it the board can probably handle it.
Another one to take a look at is the Salomon Drift Rocker. Mid to mid-soft park flex, full reverse camber and Rocqualizer/Equalizer side cut. They both use the idea of unblended tri-radial side cuts to put additional contact points around the binding insert packs.
The Drift Rocker is $350 but you lose the power ply topsheet.