The note for undergrip single bar dips says this corrects forward lean in dips.
It would be very nice to have a video of this dip from the side.
If anything I find the undergrip makes me lean forward even more. I always focus on staying straight in my ring dips, and having the rings moving along the middle of the body helps keep straight. The bar being in front forces me to have more of a lean.
It's even worse at the bottom of the dip. I have to hunch forward to touch the bar with my upper chest, other wise my hands just slip off.
Any thoughts?