I'm not exactly sure what to interject here, but using an adapter, whether 510-ego, 510-510, tank airflow (which I use), etc, will not stop you from damaging the vamo center pin gasket. The center pin of the adapters slide and move, so if you tighten down on the adapter with your device, you basically tighten down on the vamo center pin. Lesson... don't over-tighten. Personally I don't use my airflow adapter for anything other than saving wear on the vamo threads.
Thank you. The part of the Protank which screws into the Vamo is visibly longer than that part on other clearomizers and hopefully may also be longer than that part in 510/510 adapters. I do note that some vapers have had similar difficulties with 510/ego adapters which may be due to either overtightening or length of that part.