Gun fit for side by sides and doubles are slightly different. Use what you got as a starting point and adjust from there by shooting at a pattern plate. Shooters who remount can almost lock into a higher stock than if they shot drop gun. I can shoot most guns that are within a decent range of being what I normally shoot. If stocked too high I need to carry the bird above the bead to compensate for a higher point of impact. That is what the pattern plate will show you, how close your point of impact is to your aim point. Once you know that adjustments to the stock or your shooting style are easy.
