Here's how legitimate teaching works. Notice
in this thread starting at this post where aaronblood jumps into jerm138's discussion on passive sonar tracking. I'll let you read it for yourself to learn how someone responds when he really seeks to communicate the truth. At one point to make sure they understand each other correctly arronblood and jerm138 are actually arguing the other guy's position! The only thing important to them is that they don't accidentally mislead people who want to try the ideas out. Salute to both of them! Aaronblood has jumped into my threads to set me straight too and every time I've come out wiser, my materials sharper and with more people practicing the techniques because the explanations are easier to understand.
Now apply that test to greyrider. Fail.