James B. thank you. I was hoping you would chime in on this. I remember you saying on one of my other post that you used Millets on your setups and I knew you would know what I was talking about and would have the answer to my question. Thanks again for the helpful answers. I was out today and saw the rings and remembered you used them and they did great for you. I got the extension ones. I will probably install them tomorrow. Wish me luck and I understood your reply completely. I will follow your instructions. I also noticed the ripples on the inside of the rings. i was wondering, wouldn't that make them grip a little better on the scope than an ordinary smoothe finish on the inside of the rings?Any way , if I have any troube I will let you know. Thanks again. only thing hard was getting my wife to bite on the rings after just getting a new scope. the rings cost 34.00 dollars.