Slicing is mostly due to an open clubface at impact. This is a great way some to close the face but it might not work for everyone. I know from when I used to be a bad slicer that closing the club face at impact was one of the hardest things to do. Even though I knew what I was doing wrong I still kept messing up. It takes a while to make yourself do something with your golf swing, it's much easier when a pro teaches you.

Good post though, should work for many people who can't cure their slice.

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Gator's Bag:
Driver: TaylorMade Burner 10.5 UST Proforce V2
Wood: Nike Sasquatch 3 Wood
Hybrid: Adams Idea Pro 3 I-Wood 20*
Irons: Nike CCI Forged 4-PW
Wedges: 52* Nike SV Tour, 56* Titleist Vokey Spin Milled, 60* Callaway X Forged
Putter: Ping Karsten Series Anser