I've hear it was good practice to fly in atti, so I thought I would give it a go. It does drift in different directions, but does not "dart" in different directions. I found it quite easy to fly this way, and would highly recommend this to sharpen your skills. This is my first quad, but have plenty of RC plane experience. I can understand though, that if you rely on GPS 100%, and it falls out, the drift may seem like a dart in on direction or the other because your brain cannot predict when it's going to happen, and you freeze, and or throw the controls in a panic direction that has no plan. Fly on my friends!, and be safe!