This isn't an arguement about balance shafts. The dude wants help and input. The fact is people go about cars completely differant. You can go to ten differant people and get ten differant answer on why the cars doing what it's doing. There are alot of people running with balance shafts, at the same time tho there's plenty of people running without them Everyone I know without them however haven't ran into issues because the fact tho. Just another thing that is a judgement call made by the owner of the car..not wikipedia..