I do have one clumsy grey, Sterling Gris, he is now 1 1/2 years old. He was lightly clipped when I got him at 5 months and has always bullied through flying, clipped or not. He is clumsy but he is a big guy (505g) and very determined. He is still losing clipped feathers and is still clumsy. He falls off of his night perch some nights but keeps on trucking. Like I said he is determined. Ana Grey, tag, flies like a jet, quick and maneuvers beautiful. Louie, the zon, is steady and sure. Sterling Gris is slow like a helicopter but gets there in time.