Before learning grabs you need to have your pop dialed. It's kinda corny but thinking about it in steps can help. Ever heard of ATML? Approach, Takeoff, Maneuver, Landing. Let's say you are gonna do a safety grab and are grabbing with your left hand. First find a jump that you can clear comfortably. A: On the approach you want to be nice and centered over your skis, knees bent and in the "ready position." T: When going up the lip you want to explode upwards between when your tips or front of your bindings are going off the lip. M: For doing a grab you are bringing your skis to your hand not your hand to your skis. Basically suck your knees into your chest and float a hand down, grab, hold on. L: Before doing any of the above you should know how to land without exploding. The end.