Slam & sling tackles have your say?

im still bemused by the Trengove one. The big difference between the Trengove one and the other ones is that Dangerfield caused the issue by attempting to kick the ball whilst being tackled. This meant he lost his equilibrium and the tackle looked in the process like a sling when in actual fact Trengove's force from when he began to when he finsihed the tackle was the same. Had Dangerfield not attempted to dispose of the ball the tackle wouldnt have slung. On the other hand the tackles where the player in the tackle has no control over what is happening is a issue. How Corey got off is stupid just because the player he tackled wasnt injured that tackle could have broken the guys neck.