Hey thanks, I'm not sure if I'm right. There are many different sayings of should or should not adjust the preload. As for now, I notice my preload is too high, which it is causing a steering memory (the steering lean towards to the previous turn direction). I'm assuming the spring got stuck and unable to rotate or return back to position, which causing this problem.
And yes, I do a nice set of extra spring, 9/7
