Calling to me is always hit or miss especially early on in the season.
When the rut is full swing I use the big bleat can, seems to always bring in a buck or two. Also, when it comes to the grunts and the rattling antlers, I have used them when I haven't seen a deer, and one usually will come in running like bat out of hell, but I've also had them within sight and not move during a sequence... You just gotta give it a try and see, but be sure to give yourself time in between sequences.

Some may disagree but I give it a shot if I get a "gut feeling" it may work.