I have a nice seat up that I made from a camera type heavy duty tripod and another rest I had combined. I use it for antelope or rig type spots,with portable 3 leg pack stool. The main tube is spring loaded and I mean shoots right up, ther is a gear crank for angle and upper rest has arm for manual angle,units swivels.You have to load rest as there is some play in unit, but very little. I do not have good picture at this time but will try to find one. There are some guys on here that have set ups like this that do some very serious long range work, think they are Penn. guys. Ill try to get better pict.