Meanwhile that "Angon issue" is caused by a vanilla bug, which is fixed for the next patch. I still tried to do something about it, and to be honest I'll be trying to eliminate all module dependencies from now on. At this moment, I've removed the need for a module shield for all ships with a Ram Drive. So the "Angon bug" is fixed on my end.
I don't think I can do the same for the Burst Shields shipsystem though, since the shield needs to have a fighter-class collision, and can't alter shield collision type independently without modifying the module/ship it is on. And If removing the modules is the goal, then I would need to alter the ship itself, which is not happening. So that will need a different approach.
Anyway removing the module dependency for the Ram Drive shipsystem, also fixed the refit crash bug, which to be honest was the reason why I started removing them on the first place. This also forced me to change the vanguard halberd shipsystem to something that does not require a module, for the time being, fortress shields. Regarding the Adarga (P), it is no longer a skin of the Adarga, which also fixes the bug.