mihaidxn wrote:

True, but what if you want a more restricted MTL?
I believe that is what the solid block is for.

I honestly don't think that would help this RDA fit more MTL RDA users as the atty(Clone and authentic) leaks air from other places going that tight. There are much better MTL RDA options. The solid disk can help give you a more Le Concord like airflow as opposed to Le Supersonic though.