Driver head weight

[live4golf]

If you do nothing else to an r11 driver head other than increase or decrease weight using the weight ports, what should be expected from a launch angle and spin perspective? Would increasing or decreasing weight increase or decrease spin rate and launch? What sort of weight change would be needed to see any real difference? 1, 5, 10, 100g?

I have seen some stuff about changing the location of the weights to change ball flight and spin rates but nothing on just changing the actual weight.

Ta.

[timinsa]

Adding weight should increase launch angle slightly as you raise the SW.
You have to move large amounts of weight (20+gm)to have significant effect on ball flight L/R. It's why draw biased heads are still 9º shut instead of super heel heavy. Face angle is king when it comes to altering L/R flight.