I've already decided that although sorcery is fun and all, I'm leery of the trade-off of corruption for any of the basic 4 teleologic spells. That being said, Saesordian Compass has me intrigued.

Would people say that the penalty of reduced effectiveness for rtr (specifically, although I know other spells are penalized) is worth the faster killing of compass? I'm wondering as a purely mechanical question, and with an emphasis of using both to train.

Agreed.

Hope not ever to see Heaven. I have come to lead you to the
other shore; into eternal darkness; into fire and into ice. —Inferno