Quoted from phishrace:
Before anyone does any changes around the outlanes, I would suggest they check the feature audits to see if they really are having a problem. Don't own one, but I've played one on location enough to not notice one outlane being worse than the other.
Feature audits will tell you exactly how many balls have gone down each outlane.
Indeed. My Starship Troopers was really making me angry with outlane drains. Turns out that that 33% of all balls end with an outlane drain. Since then, I've stopped complaining about it because it was all in my head.