For info on how Seeklander teaches the grip he has a youtube video.
This is a great example of why we should try to experience different instructors. I would be willing to go out a limb and say both guys have the same, or similar goal as far as shooting; to perform at a very high level. I would also be willing to say that both guys do just that. But in this case, they have two very different approaches to the same thing. Which tells me different things work differently for different people. In order for us as individuals to find what works best for us, we have to do a little exploring sometimes.