Originally Posted by KyleBlake
The reason I'm asking is because I was looking for more control with my golf swing, and I've been taught to restrict my swing - which in turn has taken yards off of my drive. The video is saying that not restricting your backswing and focusing on your alignment and stability will give you the distance with the accuracy.
There's not so much wrong with that, if it's what works for you, it's more the trashing of other methods, which also work for many other golfers. Also the faked "scientific" evidence and misrepresentations. But if you only look at the examples they use of what they think are "good" golfers, yeah those guys were good golfers, and nothing wrong with swinging like them, if it works for you.
On the "restricting the backswing", I'm not sure how many people actually teach this. Some, like Hogan, teach not to over-rotate the hips, rather to keep the weight on the inside of the back foot, where you can get a strong push off, while coupling that with a full shoulder turn, getting maximum seperation between the hips and shoulders to generate power. Altogether though, that still makes for a generally complete and powerful backswing. And part of the point for Hogan of insisting on limiting the movement of the back knee, which slightly restricts that hip turn, was precisely to increase stability. For Hogan, additional movement of the legs only added inconsistency, while he could still get a strong aggressive hip turn without it.
Alternatively though, yes you can bend the front knee in, and maybe even lift the front foot, and allow the hips to turn even further in the backswing. I don't know that this really adds power, generally. But if it works for you, great. There are certainly a number of good golfers who do these things, as well.
I think the point of the PureStrike/5SK teaching that others are pointing you to here are that it emphasizes the 5 things that pretty much all good golfers do. Some of these other things are finer points of mechanics which some golfers do one way and some do another, and there's no point in getting ideological about them, you just need to find what fells most natural or works best for you. A good instructor should understand enough about these different possible variations to help you do that, rather than just teach one way.