Whatever bipod you choose, and the Harris can't be beat in my books, it seems that the Handis work best of bipods when a pressure point is added in the forearm. I don't use the forearm washer trick anymore, but I do use the pressure point trick. I use a thicker than standard piece of refrigerator card magnet, you know the type, like a magnetic business card, cut to about two inches in length by about 1 1/4 in across. I place it in the forearm in front of the forearm screw hole, toward the muzzle, about 1-2 inches, some like it closer, some further toward the muzzle end. This lets the barrel set away from the wood at the muzzle end of the forearm and gives the bipod a solid area to rest against as well. I think it keeps the forearm from "flexing" (for lack of a better word) at the point of contact with the bipod. I've only tried this on standard wood and laminated wood foreends, seems to work best with the lams, but I get pretty good groups with it like this on all I've tried it on so far.