Bagz
Bang!!
Well from my experience a balanced bat is your best option for an overlap grip if you want some more control and more whip. It will feel a tad el with an overlap. If you try to use a .5el or 1oz el with an overlap it will feel like swinging an axe with no control unless you are very strong with wrists and hands. Bp reps and a strength program of hands and wrist will help with more consistency in the end.