I have found that I like a bit less drop on a DR. Since I prefer a 50%-50% pattern on a shotgun - as much pattern below the "point of aim" as below - that means about the height of the rifle sights higher at the nose of the comb than a stock on a shotgun with about the same drop at the heel of the sock. This arrangement allows the head to be (slightly - about 1/4") higher to aling with the sights but does not tilt the rifle upward as equal adjustments at comb and heel would do.

If you were to adjust both comb and heel you would get a high shooting shotgun - favored in general by the Brits - and a high shooting rifle - not a problem if you become used to a POI at the top of the bead. I just prefer a POI under the bead.

JPK