I am really not a big " caller" . 90% of my hunts involve no calls at all. For the most part I save the grunt for when I actually see a buck passing by and need to correct his course

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I have rattled in a few bucks with the bag, but blind calling scares the heck out of me. I always feel I scared the big boy away - and if I would of just kept quite he would of come by.
Usually when the grunt/can/bag come out it is because I do not have 100% confidence in my setup and plan - and I am grasping for a miracle
The only time I really rattle with confidence is during the hot pre-rut, when I am holed up in a thick bedding area for the day. I have had some real good responses at high noon.
One of the biggest draw backs to me with blind calling mature bucks is their propensity to circle downwind to the call. A scenario that always makes me queasy

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Or is it better to just sit there and let things happen??
If your stand setup is solid - IMO this may be the best way to go