The KO systems work very well. I have to raise the comb up to max height with the shim between the stock and the action, but once I do that, an A400 with the KO is the softest recoiling shotgun I have ever shot.
That didn’t change your POI? You had to adjust to stop the cheek slap or never had a problem with it?
I have to use the highest setting to keep from shooting low, but it does have the side-benefit of reducing face-slap. I did not have a problem with face-slap with the "medium" setting the guns usually come set on, but I might if I had gone to the lowest setting, i. e., the one with the most drop.
