Most have been shot off my knees, whether sitting on the ground or from a stand. A few have been taken offhand or standing, leaning against a tree. This past season, I took three from a two-man ladder stand with a padded rail, the first I've had so equipped. Very handy, not just for the shot, but because it allows me to rest the rifle beside me on the seat with the barrel laying on the rail until needed. Makes using binos and keeping my hands warm much easier.
One deer was taken some years back from a classic sitting position, properly slung up in a Whelen sling. I saw a doe cross an opening across a small ravine and below me. I dropped to the ground, put my arm through the loop and tightened the keeper and waited. In a few seconds a buck stepped into the opening. I put the reticle on his heart and pressed the trigger. Elapsed time from spotting the first deer to kaboom, maybe ten seconds or so.
