Are you target shooting or are you practicing for Self Defense/CC
Target shooting depends on the venue, but it must be comfortable.
SD/CC should be un conventional, meaning different odd, uncomfortable pistons.
When I teach SD classes I make the students shoot from a car, chair, recliner, laying on their backs, behind cover, moving to cover, carrying something, etc etc. Basically as many conditions as one finds him/her self in their every day life.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071