I agree - I've heard of JB success in things I would not have tried (and still won't).
But... very few people spend their own time telling people how they did it, and lost the engine.
The twisting force between the damper hub and the crank is very large, even the key isn't enough. It's supposed to be a press-fit. If it moves, the damper doesn't work - and it eats the nose.
