That's fine in practice. But in the middle of battle, you won't always have time to calculate everything. You need the ingrained muscle memory, too, or you'll be caught off-guard.

[Felix arches a brow at all this pointless dissembling, and then blinks.]

If you're telling me to learn more about our classmates, I assume the Professor will tell me anything I need to know about them. But if 'someone' would be happy to explain, then be that someone. If there's something you want me to know, just tell me. I'm not doing research for your amusement.