Q6 - WHAT IS 'MOI' and 'CG' ALL ABOUT?
MOI stands for moments of inertia – that’s basically how big the sweet spot is.
CG is centre of gravity. The best way I can put that to you is, if the centre of gravity is low and further back in the head it would launch higher and spin higher, but then you have to be careful because that makes the MOI quite big so the sweet spot is good. But if you bring the CG forward and closer to the face it makes it lower launch, lower spin, but it brings the MOI down to a minimal level so the mis-hits are worse essentially.
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Q7 - WHY DO DIFFERENT COMPANIES HAVE DIFFERENT PHILOSOPHIES WHEN IT COMES TO THE POSITION OF CG - DOES THAT NOT JUST MISLEAD THE CONSUMER?
Essentially all the different companies have different theories on hitting it further – generally they’re all trying to do the same thing though, and that’s to launch it higher with less spin, so that’s why they mess with the CG positions.
But generally you will find that most of the CG positions for your average golfer will be as low as possible and as far back as possible because that makes them launch higher and it gives them a bigger MOI.
Q8 - WHAT DOES 'GEAR EFFECT' MEAN?
This is actually difficult to explain!
Let me give you an example; say you have a guy who comes across the ball a lot (so his club path is out to in) generally that sort of club path would create a slice, so left to right ball flights. But if he were to strike that out of the toe, it would go left – which is a gear effect.
So it’s basically strike pattern on the face having an effect on the ball.
Q9 - DO DRIVERS WITH DRAW BIAS REALLY HELP FIGHT A SLICE?
They can help yes, but the only down side to them, is someone who swings it on a club path that’s always left will hit a dead straight shot left because it just releases the club earlier but doesn’t affect swing path you see, so you have to be careful.
It can reduce a cut don’t get me wrong, but generally they add weight to the heel – if you add weight to the heel it releases the club, if you add weight to the toe it slows the release down.
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Q10 - HOW DO FORGED AND CAST IRONS COMPARE?
TESTED: BEST GAME IMPROVEMENT IRONS 2017
Forged are softer feeling and cast are firmer, a little bit better for distance and more longer lasting – that’s another big thing with cast over forged, they last a lot longer.