4 more notes.....
If you are shooting a glove and it grooves, you are shooting the wrong glove.
I have never lost an animal due to me not using a tab.
Howard Hill did pretty well with a glove.
And lastly, I wonder how an Olympic shooter would fair shooting and killing a charging boar - not once but 3 times dropping two in their tracks, and how they would fair shooting and dropping a buck in the dark that was a recovery, or shooting a friends hog he shot on a dead run, more that once, or an Angora goat scalding away at a 45* angle? For me, any Olympic reference is totally irrelevant. I shoot what suites me best, not what suites an Olympian. So, use what suites you and your hunting style and needs.