I carry 12:00 IWB with total tucked-shirt concealment with a Crossbreed SuperTuck tweaked to lower all but the hammer and the butt of the extended grip below the belt line. In a pinch Clinger's Atom works as well, albeit with more belt sag and less pressure-distributing comfort. Re. comfort, the lower contour of the SuperTuck's leather got trimmed, generally V-shaped, to enable fully comfortable sitting, bending over, etc. Both holsters are fully RAMI-specific.