well I have two rules for grabbing to make it ezr.
1st KNEES TO CHEST NOT HEELS TO BUM. it makes all grabs ezr. you dont want to just bend over and grab it. you want it to come to you and meet it half way.
2nd KNOW WHERE YOUR GRAB IS GOING TO BE. dont go following you ski all over the place. If your grabbing tale with your left hand dont set the trick with your left hand and then come back for the grab. set it with you right and keep that left hand chill'n. I know your tail is a long way away but it going to come closer as you pull your feet in. so there's no need to reach WAY down when you know its going to end up right behind you left shoulder some where.
remember knowing were you ski is, is good. knowing where its going to be when you grab it, is better
I hope that helps bud