PH/tracker carries the sticks. PH sets sticks up and sometimes even puts the rifle on the sticks. Shooting off sticks isn't rocket science. My rifle range is not on the side of a steep mountain or on top of a broken rock pile or in a thorn thicket. I guess I could practice moving sticks around on the lawn at my firing range but I don't see how that would help a whole lot. The major issue I (and others) have with quad sticks is readjusting them for moving game. With tripod sticks I can move myself to get back on target. With quads I need to pick up the sticks with gun still in the rack and reset the legs. Lifting the legs over/around rocks, brush, logs, etc. or resetting them on steep ground can be complicated. In any event, resetting the sticks, however complicated or not, requires movement which can alert the quarry.
I have a different experience with quad sticks. Sorry you can't respect that. Oh well. I'm not gonna lose sleep over it.