I’ve noticed it takes quite a bit of effort to disengage the steering column lock sometimes when the car is shut off with the wheel turned. By effort, I mean trying moving the wheel left and right slightly to disengage the lock, so the key can actually be turned to start the car. I lubricated the tumbler assembly last year with graphite powder through the keyhole and the key operation itself is extremely smooth, with no noises or notchiness. So the only problem is the lock assembly not disengaging properly unless the steering wheel is perfectly straight. I did watch some of Uncle Kent’s videos about this, and he says the culprit of that symptom is the tumbler. He recommends removing and lubricating it, which I haven’t done yet. He makes no mention of the lock assembly causing issues. Could it possibly be just the tumbler not engaging the lock assembly smoothly because of dried up lubrication?