I know you've been shooting a long time Glen but you do chop about between disciplines. If you spend all your time shooting nothing but receding targets from 16 yards I can show you the kill difference between a 6.5 shot and a 7 same weight, the difference between a nickel and a led, never mind 24/28gm. A Golden Trap and a Red Shot have enough difference to choose between them. People fret about the effect of a half choke versus three quarter. Your chosen trap persuasion is Helice I believe and I'm sure you'd rather shoot off with a 28 than a 24 given the choice. Oh, how did you distinguish all those steel cartridges - weren't they all the same?