What a crock of poo. You're incredibly straight and accurate and a 12 handicap. Sure thing. Lets see you hit a 5iron off the fairway with your weight on your back foot Good luck. The elbow can be another lever but no good player has to actively do anything with the wrist to get the lag or square it up as they do. You get speed because your arm speed is fast. You have speed. Its not the method.
Phil, my handicap would be back into single digits about now but it would have been back out to 20 or so 6 months ago. I.m om the improve!! I was learning a new swing, and some parts of it are difficult to get.
As for speed. When I first started the LPG swing I couldn't hit it "out of my own shadow" as Iacas would say. But even when I was hitting fats,thins, and everything in between I was surprised that the ball went straight. As I got more and more comfortable with the stiff wrist and bent elbow my distance has increased, and it's still increasing.
5 iron off the deck, I'll get onto it.