The main pro of Silent casting, as least in a computer game context, is being able to cast when Silenced, I believe. Depending on enemy make up and AI thst could be a big pro or a small pro.
Cone to think of it, I kinda wanna try a Sorcerer/Cleric combo now. Cast Silence on the enemies with the Cleric, then burn those Sorc spell points to not give a damn.
