dekes -the easiest is defintely 2 hens and one jake.
calls- easiest is push/pull next is box and then slate

since you know there are birds in the area i wouldnt worry about callin alot. just enought o get him goin and once he starts to come in STOP CALLIN.
it took me awhile to realize this. i love to see em gobble their heads off but not if they dont come in ranage.

know your guns effective range and try to be able to estimate that yardage in the field. I.E. if you know your dekes are 15 yards away then take the distance from you to your dekes and use that as a guide.