When you wrap your fingers with the tab on around your string, the tab should just cover you finger tips. This means, that if you are not shooting but wearing the tab, your finger tips should not be covered but rather sticking out as though the tab is too short.
When shooting with a tab, one should want as little leather as practical in contact with the string, this gives the best release and is how the tab is meant to be used. If you want your fingers totally covered upon release, I would try a glove because your ending up with the same thing if you want the tab to completely cover your finger tips when the hand is open.
Hope this helps.