This competitive leaderboard track was created prior to April 2014. The rules for this track have lacked some specificity beyond the simple "5 Men" requirement and therefore resulted in score performances being accepted that may have been submitted under slightly varying parameters.
For instance - DIP switches can be set for the game to restart after it's been won, outside of the pay-as-you-go feature, with no additional coins necessary. It will just start over and keep playing. The manual doesn't explicitly say it, but when you turn off the pay-as-you-go coinage option (A6=on), and set the game restart option (B5=off), it just restarts without more coins. This means that it is possible that some scores on this track were achieved through unique game continuation looping.
If you plan on submitting to this track, Twin Galaxies requests that you optionally provide as much information about your chosen "player settings" so that adjudicators can appreciate your accomplishment within greater context than the simple "5 men" setting requirement allows.