I have found that using hand calls for my style of hunting is absolutely the most efficient. The ability to slip into an area and make the exact sound I want at the exact moment I want it is critical. Having to go and set an e-caller 60 yards away and then sneak back and sit down is too much time, movement, scent and Noise for the conditions I hunt in. I also found that I spent way too much time looking at and fooling with the controller instead of watching The Woods for an approaching animal