Perfect. More controle is importent. Try a good breathing controle, like in gunshooting. Breath in deep, then let 3/4 go and hold youre breath. At that point in a breathing cycle youre able to stand perfecty still for a few seconds. If you feel to weak, for big lenses, you should do exercise. It will show result in weeks. Just buy some handweights and excersise during television for 15 to 30 minutes a day. It works, realy ;) Happy shooting