Agree with WtS.

So how does a VR help with sight picture? I take it most have not shot a M21 trap model. It was a revelation for me. The VR definitely helps with rising targets, especially those obliquely rising (trap teals, too). Frankly, if I ordered a purpose-built NSCA double I'd have a VR. The VR sets the eyes higher above the vision-obstructing bbls. I can see no downside to it........well, aside from aesthetics.......as that elevation would not hurt me on crossers and droppers. All else equal, the rib will add weight up front which needs to be factored.

Sam