Yeah, the trap bar dead is equally a squat.
As I have no hyper extension or reverse hyper I was thinking of throwing in a couple of sets of good mornings after Monday squats. Hopefully these with the squats, rows and ab work will keep up the deadlifting muscles, when I eventually reinstall olympic bar deads in my routine.
Its just that the deads seem to particularly irritate my lower back nowadays, that's why I am going to give the trap bar a shot.