[Vwdiesel] Turbo balancing

[Libbybapa at wmconnect.com]

I've always heard that balancing a turbo should always be done if the factory 
balance has been upset.  I will always balance mine, but just wondering how 
it can be so important?  Each time I have dismantled a functional turbo it has 
had considerable deposits on the turbine and compressor.  Those deposits 
certainly were not uniform or balanced and yet the turbo worked fine.  Kinda like 
having tires balanced and then looking down a week later to see that you have 
10 rocks stuck in the tread of each tire.

Andrew