If you stand in front of a full-length mirror and assume the position, offhand shooting position that is, you will notice your cheek is higher than your shoulder. Therefore, the cheek piece is high for sighting and the stock slopes down to meet your shoulder or crook of your arm. Schuetzens in 25, 28, 32 and 38 calibers generally have mild recoil so the felt recoil is not uncomfortable. If you compare a 19th century schuetzen with a modern Anschutz style small bore rifle stock, set up for offhand shooting, you will notice a similar placement of cheek piece and butt plate positions.

In any position you want to keep from tilting your head side ways. Equalibrium, tilting forward is OK but side to side your balance gets affected. More up right your head in your stance the more stable you should be.

The raised shoulder forms a pocket to help aid with recoil. In small bore you leave the arm lower (and relaxed) no recoil. Smallbore and schuetzen hooks you need to be sure that the hook is not pressing on your side or the arm is such a way as to cause unwanted influence. arm can be elevated or not to help achieve this.