I have been taken by surprise and had to shoot offhand. It seems no matter how much you plan stuff happens. Some years back when I first got my 475L, I got set up to be able to take a 270 degree shot. The deer didn't get my email. I had to take the shot offhand. Well, I generally loosen my grip a bit for offhand shooting. Needless to say the gun hit me between the eyes. The shot was great though and the deer was down.