Never cared for 8's OR 9's......lost a lot of birds to #8 shot when hunting; switched to 7s (NOT 7 1/2s) and problem was solved! Use to use #8 for trap shooting and targets only, but then started finding clays during the pick up that had one or two holes in them, but weren't busted. Started using 7s and my 'misses' became fewer.
Just the ramblings of an old man.................