I have a .665 Indian Creek choke tube and .665 Jellyhead choke tube for my Remington 870 SM. The best results I have seen are with the Jellyhead choke tube and Hevi-13 3/2/6, but am almost out and can't find it locally, but I can find the Magnum Blend 3/2/5,6,7 locally. Has anyone that is running a similar setup as mine compared the 2 shells? I would like to know any comparisons that anyone has experienced or other shells that might be suggested. Thanks much!