When we rebuild a turbo, we have to work with the cores we are sent. Some are better then others, admittedly. We wish they all looked perfect. When we rebuild, we consider how the turbo will WORK. If we deem a part suitable for service, then it goes together and we warranty it. Sure, we could put all new parts into a turbo to make it look perfect, but then you wouldn't buy it because it would be a new turbo, and you don't want to pay a new turbo price. So, compromises have to be made to produce a product that is of high quality with regard to function and durability (which honestly, when your hood is closed, is what you care about), and price. We don't expect people to take stuff apart and nit pic the insides. If you had a problem with how it works, or there is a boost leak, obviously that is a warranty issue and we would deal with it accordingly. We want customers to feel comfortable in using products from us, and obviously if there is something we need to do to make it right, we would want to do so.
I spoke with Shawn on the phone, and he seems to be satisfied with the situation so, onward and upward.