Yes I do. Before I go to bed at day 13 I do my last turn. At 2 weeks they don't need to be turned. According to the Cobb's development chart the chick turns to the big end of the egg day 14 (ish) so I started leaving them at rest at this point. I usually candling once a day, so you could say they get turned once a day when I candle, but that's it. I have found that with the exception of my daughter nn's eggs, which I've had trouble in general hatching, that I don't normally have malpositioned pippers any more. (Not that I ever had a big problem with malpos, usually managed one or two in a hatch nothing big.) I am not saying that not turning is or isn't the factor, but it matches my logic. I believe that the hen can feel the movement of the chicks when they turn and logic follows that they probably sit tight during this period. We can not tell when the chick is positioning to the big end, so letting them rest just makes sense to me. It definitely hasn't hurt my hatch rate as I continue to have healthy chicks, so there's no reason I would change the process.