So I was just playing a bit of override and noticed that, while standing in my own well of radiance, I was able to shoot the shield of the boss hydra and still deal full damage to it (essentialy, the hydras shield counted as body shots) And it was not an anti barrier overpenetration of some kind, because sniper, SMG and heavy MG dealt 100% damage to it. I also tested it on a lost sector boss hydra (alone), still worked. As soon as I stepped OUT of the well, the shield was immune again. I don't know what causes this.