Replying to Why do I always knuckle?

Whenever I hit the 35ft jump at Perisher this season I keep knuckling. Even if I start right from the top after the last box, don't carve or turn, and pop as hard as I can I barely make it otherwise I full on knuckle. I waxed my skis and everything. They're 2013 Amarda T-halls (don't judge). I see other skiers and boarders casually do a few turns, carves, then hit the jump fine. I don't get it. Same thing happened last year at the Antons jump line at Thredbo. I push hard, skate, tuck, and pop as hard as I can aaand knuckle. halp