Today on either the Sunday Footy Show or The Roast, they showed a couple of clips of Gidley taking the high ball near his line. You wouldn't want to be trying to be anywhere near him when he comes down after the leap because his leg/s go to the horizontal towards the attacking player on both clips that were played. I don't know whether he does that all of the time but it would make the attacking player think twice about immediately tackling him.