I've used the Duraglove, and it works better than any other I've tried. I pretty much exclusively use a tab now though. I have a Screaming Eagle cordovan tab. I get the best release with it, but I do develop a callous on the bottom edge of my ring finger. I'm back to shooting split. I've tried three under and can shoot pretty well that way, but feel like I have more control shooting split, and my bow is MUCH quieter. I think I shoot better instinctively split finger. If I gap shoot, three under works better because the point on distance is closer.
I guess I sort of shoot a modified gap method. Shooting 20 yards and under, it's pretty much instinctive. Over 20 I have to gap shoot. Don't know if that makes sense or not, but it works for me.