Now i'll just say that i havent got as much experience as a lot of people on this forum, but i find that patterns tend not to be an exact science because when I was starting out I must have read hundreds of articles, books, documents and post on patterns decoys and all that but the most successful thing that I have found is a rough group with at least one large space to land in, and that works fine for me and yeaterday I had a go with my airrifle for a change on a bit of clover unsuitable for the shottie - wasnt busy land pigeon wise, had but managed to get 1/2 a dozen to land briefly and shot