Power Dribble

[coachgrd]

Low post player catches a pass in the low post and drop steps to the hoop. In order to move his pivot foot, he power dribbles one time (slams the ball down with both hands and catches it), then shoots. Is this double dribble? I have taught this technique and seen many players do this for many years and never get called for double dribble. Over on a howler monket web site a coach said his post player was called for it and he too was puzzled. Looking for thoughts from other officials.

Thanks!