Frontier Gander.....I will keep u informed as to how the shims work out. I am not sure when I will get back out to the range. Some of my CF rifles shoot better floated. I have a 220 swift in a heavy barrel Ruger with twin set Canjar triggers that like 3 lb of pressure up front under the barrel. That is what makes any kind of shooting fun. I must admit at 69 I love the one shot dal with my Matthews Switchback bow and my 3 ML. Thanks again