Help with MOI and weight placement

[SUITS]

I have a question for those who have a good understanding MOI on drivers. On drivers where the weight is positioned toward the front the are less forgiving and lower spin.

further back and it’s more forgiving and higher launch. 
What is the effect of the weight is positioned equally? On a club like a cobra, typically it’s one heavy and one light. What if they are both equal? 

 

[Howard_Jones]

We cant make a lot of changes to center of gravity, and high or low MOI is simply high or low resistance to twist. This head twisting is what causes vertical gear effects, and VGE is the ruler of spin.

A driver with a "forward or short" RCOG will be able to twist more than a head with a "long" RCOG measurement, so a head like SLDR will be able to cut of tons of spin, BUT ONLY if you make impact ABOVE VCOG. If you make impact below, the opposite happens and you add TONS of spin.

That means a head with a short RCOG measurement will be more variable on both launch and spin values that a head with a longer RCOG / Higher MOI on the vertical axis.

VCOG also influence on forward shaft bending since it will always force itself forward and end in a strait line down from our hands, so the longer the distance is from the shaft center and back to RCOG, the more that head will force its way forward.

Then we have the Horizontal axis, where a low MOI means more face angle opening at impact if we make a impact toe side of VCOG, and thats why this heads can be very variable on direction and tilt of spin axis.

Its all a trade off in the end, we have to play around with the weights available within the max head weight we have found good for us, so the weight itself is the first we have to find, then the best location of the movable weights.