I have half choke in both barrels of the o/u and half in the auto, it's a good all rnd choke and for me if you stick to the same choke you learn to shoot more consistent, def for clays, same choke and cartridges every week and after that learn to point the gun in the right place! For game I normally use black gold 32g 6's in fibre, pigeons I use hull superfast 27g 7.5's fibre that I use for clays, same half chokes and never have a problem with clean kills!