I always follow most of these completely. I guess I never really set the steaks down in a different spot when I move them but that's normally because I usually have a lot on the grill....no room. I always get the rack super hot to give the Grill marks, plus I think it sears the meat a bit to lock in the juices. I'm no expert though.
Also Dude, I have heard that about seasoning too early with the salt and drying the meat out. I've always seasoned the steaks well before I put them on and I haven't had problems with the meat during out. I'm not sure if the salt takes longer to have an effect on it, but twenty minutes to a half hour has never been bad for me.