I've used this guide a couple of times and while I find it to be quite good, I found that I had to, or rather prefered to set the geometry/shock positions before sorting out the spring balance.
When doing it the way that is suggested, moving the shocks to help with balance, I found that the shock positions I would end up with was worse than setting the shocks then doing the springs.
I would end up with the shocks in positions that just did not suit anything.
I know my buggy will not steer on our track with the tyres I have unless the rear shocks are on the inside hole on the A-Arm.
So I just set the shocks to how I want/like them, then try to balance with springs as best I can (the shock tower holes I find are better for fine tuning, they dont make anywhere near as much difference as the A-Arm positions).
Just what I've found anyway.