As someone who has actually trained with you, Leon, I would have to agree with the others who say that you're mistaking muscle power with the power of aikido. Giving up the first kind of power is the only way to get to the second kind. But its an act of faith to do that, and you will stumble over familiar waza at first, and it takes a while for that second kind to arrive. In the meantime, you can get impatient and long for something that gives you more immediate results. I say go for it. Maybe BJJ is the way to go.