I know there has been a lot of talk about patternmaster chokes but I was wondering if these chokes can be effective with 3" shells and 3 1/2" shells. I read a post from a guy on a different site that said he was getting rid of his patternmaster because he was going to start shooting 3" shells. Also I was wondering if these chokes should only be used with shells like BBB, BB, T or can they be used with 2 and 4 shot also. I would just like some opinions. Thanks