Eye logic is a vague term and would need a clean definition to make comparisons with.
My interpretation is how the eyes are used throughout the entire firing sequence as there is the bolt return, ball drop and paint blocked eyes due to chops to monitor and react to.
There are some differences as some code sets suffer from dry shots and burps during fast strings while others do not. Also how eye blockages are handled differs from code set to code set as well. Of course, you have to test them to find out the issues as the marketing hype will never tell the full truth.
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