Originally Posted by repechage

Among the problems of utilizing BB30 in a lugged type BB shell is the post machining necessary, BB'd distort a bit, there are no parts that can be modified to help make things work, (such as spacers between the threaded cups and the bearings) The "press fit" region must be paint free, so rust will be a concern at the "edge". Yes, stainless steel and or a bevel can address some of this, just design time.