The "only one guy rebuilding Aerochargers" is actually very outdated and in fact it hasn't been that way for years. But rumors and complaints spread faster than facts. Typical turnaround time is a week and that's only if you broke your turbo. Why does it seem that quite a few people have problems with our turbos? Because people typically do one or more of the following:
-turn up the boost past it's recommended limits
-use the wrong sized Aerocharger for their application
-send something through the turbine (like a piece of MIG wire from welding a flange onto the exhaust, quality turbo installations go a long way)
Garrett makes a great turbo but a properly sized Aerocharger will always out-spool any comparable Garrett/wastegate combo. The reason you more commonly hear from people that have problems with our turbos is because all the people that love them are always out riding. There will always be one fact: for every failed Aerocharger there are a hundred failed Garretts. If our turbos were so fail-prone as people make them out to be then why have we had contracts with the US Military over the past few years?
Not trying to tell any of you guys that you are wrong about your setups, just spreading some truth about our turbos.