John, A tab will actually give a better release than a glove (that's why all the top level target shooters use one) BUT you must give it some time. Just putting on a tab and expecting instant improvement will not work. ANY!!!! new thing you try must be tried for a couple/three MONTHS before you decide that is is for you or not.
Many folks shoot VERY well with a glove and depending on your goals or needs, may be all you ever need. That said, I am convinced that a tab is better but as I say, you MUST give it a fair try. One or two days just doesn't do that.
A tab should fit so that it is no wider than the width of your three shooting fingers (slightly less is good) AND the end of it at your finger tips should be 1/4 to 3/8ths inch SHORT of the finger tips when you are hooked on the string.
Give the tab a fair try, I think you will find something good.
Arne