I cringe every time the ball comes out the lower left side of the jet bumpers knowing that there is a chance it could drain down the side! I think this is par for the course for this game. I give the game some gentle bumps to try to resurrect it. This is usually the only time I tilt the game. My game is perfectly level. I updated my game code about a year ago and since then here's the results.....
Left drains = 389
Right drains = 280
My bookeeping shows Not a Myth! In reality TZ drains left side more frequently. My ratio left to right is 1: 1.38.