Quoted from Killerbooger:Working on this machine some and the monkey drops the ball before it gets to the area it is suppose to. It is about a half an inch off. Wondering if anyone has some suggestions to fix. Moves smoothly with no other issues.
It's possible you may need to adjust the monkey mech magnet sensor on the back board. There should be a few topics about it on Pinside. The monkey mech calibration / mech test in the menu will assist with making sure the ball drops at the correct spot.