Why the big debate boys and girls? Practice, practice, practice. If you practice with a 100 round drum or a 5 round fixed magazine, you should be focusing on shot placement and hits. Why get all fired up about this? I personally would rather have a 20 round mag in my M1A since it just leaves me more options. Never being in a firefight, but talking and reading about people who have, having more options seems to be a more desired position.