I think I have good general understanding of pressure and GFR. At least as good as one can be without using the tech daily and analyzing thousands of swings.
I think in the beginning it hurt me. Trying to artificially create pressure and GFR can be a bad thing, at least it was for me. Just like anything else in golf - doing 1 thing better or correctly is not always going to end up in positive results. Especially if you do something else incorrectly to get the result that your working on. Looking back, I think I was so focused on pressure and GFR, that even though I was increasing pressure and feeling the right movements....I never got my COM moving forward enough. Separating pressure in my lead side and COM was something I completely missed. You can get lead side pressure, but your COM stays back.
In the end it is now paying dividends, as I'm hitting the ball further. But I think it's just like anything else in golf. Knowing and being able to apply it, are 2 totally different things. And if you can't apply it, you might not know it as well as you think.