As a physics guy I can tell you chine walk isn't caused by this thing or that thing whether you are talking about weight left or right forward or back, nor does speed cause it. The boat is being balanced on a small area called the pad, the faster your boat goes the smaller the area of the pad it is being balanced on as the boat lifts further. Balancing a needle upright on your fingertip is difficult but is not impossible, it is a matter of moving your fingertip just enough to keep the center of mass of the needle directly above your fingertip. What I mostly read here about chine walking is in reality is merely overcorrection when people sense the boat is becoming unbalanced. An overcorrection, followed by another overcorrection to compensate starts a rhythmic cycle that unless the speed is reduced increasing the size of the pad in contact with the water, can become uncontrollable. Just today I was thinking about this while driving a very top-heavy farm truck during harvest. I drive on a lot of uneven gravel roads during the day. The truck tilts left to right thousands of times a mile and my hands gently move opposite of the tilt of my hips which are tilting with the truck. I do this so often I am not conscience of it, that is until I am. At that point I find myself over-thinking it and overcorrecting. What I think would greatly help deal with this situation is practice your way up to speed over a long period of time, when comfortable increase your top speed. Just because your boat can do 70mph, doesn't mean you need to go that fast right away. Remember that faster you are going the faster things can get out of hand. Learn to read the water, the wakes and waves ahead of you, anticipating how they will affect your boat as you cross over them.
