Quote Originally Posted by Sorel View Post
Currently in FFXIV, a player can only have access to one crafter facility at a time.

But using my example, if you had access to the Twin Adder's Patriarch's Laboratory, you would not also be able to access the Immortal Flames Patriarch's Forge ... simply because you cannot be a member of both organizations at the same time.

With minor adjustments I believe we can leverage existing systems to achieve your goals.
I'd be much happier with a system like this as opposed to permanent specializations/masteries. This way a group of people (linkshell) could be self sufficient if they wanted to be, as you're much more likely to have members in all three companies.